LISTSERV mailing list manager LISTSERV 16.0

Help for CHI-WEB Archives


CHI-WEB Archives

CHI-WEB Archives


CHI-WEB@LISTSERV.ACM.ORG


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Proportional Font

LISTSERV Archives

LISTSERV Archives

CHI-WEB Home

CHI-WEB Home

CHI-WEB  January 2005, Week 1

CHI-WEB January 2005, Week 1

Subject:

SUMMARY: Search & Pull-down menus-- "All" option?

From:

Dana Allen-Greil <[log in to unmask]>

Reply-To:

Dana Allen-Greil <[log in to unmask]>

Date:

Tue, 4 Jan 2005 12:55:01 -0500

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (360 lines)

SUMMARY
The majority of responders suggested using "All categories" as the list
default.  Some suggested also including "Select a Category" as a text prompt
above the pull-down list-- particularly if category selection is required or
recommended.  Thank you all for your thorough and thoughtful replies.

ORIGINAL QUESTION
We are implementing a search on our Web site that allows for and/or
searching of two fields.  The first field is a textbox keyword field and
the second is a "category" pull-down.  The category pull-down menu is
set to default to "Select a Category" ... if this is chosen the search
looks for records in any of categories.

The debate is whether or not to include an "All" option in the menu.  If
we did this, we could then either put "Select a Category" as text above
the pull-down menu field or leave it as the default.

My inclination is to simplify by keeping "Select a Category" in the menu
as the default.  I think users understand that if they view the
categories and don't see one they like, they just go back to that
default option and the search will include all categories (or will
select none in particular, however you'd like to look at it).

I'm having a hard time finding any usability studies on how people use
pull- down menus or best-practices for designing them.  I'd apppreciate
your input or any references you can point me towards.

Dana Allen-Greil
Web Project Manager
National Museum of American History
http://americanhistory.si.edu


RESPONSES:
If the dropdown options are:

  Select a Category
  Category 1
  Category 2
  ...

I feel like I have to select one other than the first, and I don't
think there is an "all" choice available.  On many sites, keeping
the "Select a Category" choice will cause an error message.

How about:

  Category:   All
              Category 1
              Category 2
              ...

It leaves "all" as the default but makes it clearer, IMHO.

- Mitch Gart

=============================================================

Generally, "Select a category..." should only be used where users are
expected
to select a specific category for searching.  I have always tried to use
"All
Categories" as the default for category for searches as long as the search
does
not need to be specific.  I have seen that many users feel they HAVE to
choose a
specific category if the drop down tells them too.  If the category they are
thinking of is not listed, then they become confused and either stop what
they
are doing or try to choose a category that they think might have the answer.
  As
for usability studies, I don't believe I have ever seen any either.  I am
just
telling from my experience.

Hope I could help.

Jim Bunzol

=============================================================
I recommend a different approach.  Use descriptive text next to the category
pulldown - 'Select a Category' or 'Categories' - and default the menu to
'All'.  I prefer this approach over submitting a form with 'select a
category' as the selected entry.

Hope that helps.


Ray Nasto
Portal Integration & Usability Mgr.
AT&T CallVantage Service
http://www.att.com/callvantage

=============================================================
I just ran a study on a government Web site a few weeks ago and observed the
following.  There was a search textbox and a second dropdown to the right.
Only 1 in 10 test participants used the category search.  Most just typed in
a word or two and ran the search without changing the category.

I have watched hundreds of users attempt searches of various kinds.  Most
people do not care to think about searching in any specific database, at
least on first attempt.  I do not have any research that I can point to on
this, just my personal observation.

I believe that many people are familiar with simple searches and usually do
not want to think about how to construct the perfect query (except
librarians); they just want to find something fast.  Usually, they type a
couple of words and see what happens.  It is easier to work with some
results rather than to figure out why no results were found.

If users get zero results because the search engine is not pointed to a
relevant database or they have to think too much to create a good query,
they usually go elsewhere.


The question for your design may be, what happens if the user just enters a
few words and they do not select a category?  If it defaults to 'all'
anyway, users will get more results that may not be as precise.  If it
forces the user to choose, then the categories will have to be very clear.
Hope this helps.

Best,
Ron

Ron Perkins, Principal
http://www.DesignPerspectives.com/
Usability and Design Consulting
978.465.6083
=============================================================
I cannot point you to any usability studies on this, but I have an
opinion / suggestion.

"Select a Category" is not intuitively a category in itself.  May I
suggest that you change it to "All Categories", and then have a text
label near the dropdown box that says "Select a category", or "Enter
your search text and select a category", or something like that.

Hope that helps,

Susan Ramlet
User-Centered Design Engineer
Medtronic

=============================================================
I say you should include "All" in the menu and move the "Select a Category"
prompt out of the menu and make it a label.  Leaving "Select a Category" as
the default and having it mean "All" is misleading.  Including "All" in the
menu but not as the default adds unnecessary keystrokes.

There is a discussion of the relevant design issues in the Form Bloopers
chapter of my Web Bloopers book, specifically Bloopers 24 (No Defaults) and
25 (Faulty Defaults).  The issue of menus that contain their own prompt as
an initial value (which isn't always bad) is discussed on page 130-135.  The
discussion covers what the bloopers are, why they are bloopers, and how to
avoid them.

Jeff Johnson, Ph.D.
UI Wizards, Inc.
Product Usability Consulting
http://www.uiwizards.com

=============================================================
I think you should do both, that is, one, have "Select a Category" as the
default--the user would not be able to leave that choice as as an effective
selection, that is, nothing would happen. Two, you would have an "all"
selection
option in the menu, or "All choices" or "All selections".

That is my opinion and is not based on defendable data. I personally would
not
understand that by using the "Select a Category" choice that it would mean
"all". With an explicit choice the user knows what is happening. Assumed
choices
always leave me up in the air; what does it "really" do?

Clark Parsons
Instructional Technology Specialist
Bakersfield College

=============================================================
Without knowing of any studies, but just going by my gut...
It seems like the simplest solution would be to make the default "All
categories," and then just list the other categories in your menu. I don't
think you'd need the explanatory "Select a category" text, because it would
be implied by the default "All categories." Also, you would avoid the
potential confusion of having two different menu items that essentially do
the same thing.

Just my two cents. Good luck!

:::::
John Yesko
http://www.yesko.com
773-490-9272 (mobile)

=============================================================
Just a quick two-cents worth.  I think that "Select a Category" might
induce some users in thinking that is is a mandatory field... And if
users open the pull-down, and like you say don't find the category
they want, it would be a  little unintuitive to go back to select
"Select a Category" as a category...

Why not just "category" next to the pull down which says "all" (or
any, depends)?  And that way when something -is- selected, you can
still see the "category" words as a reminder of what the pull-down is
about and that is is optional.

david jacques

=============================================================
I would go with 'Select a Category' (SAC) & 'All' - both options in
the drop down.

When a user would type in a keyword and leaves the drop down default
to SAC, it would give a message saying 'Please select a category'.

OR the other option is

Remove SAC from the list and keep 'All' as default.

Cheers
Ashish Tibrewal
=============================================================

The cascading form elements you have described are misleading.  The option
"Select a Category" is an explicit instruction and its function would only
be
discovered by people that 'play' with the interface.  To remove that
guesswork,
why don't you clearly label the pull-down "Category" and set the default to
"Any" or "All" e.g. http://www.seek.com.au/
http://www.careerone.com.au/

Bollaert (2002) concurs with this as she explains that instructional text
(e.g.
"Select a Category") should have a null value and only be used if there is
no
logical default option (such as "All"): "Dropdowns are designed to show a
default option, and additional options when the dropdown is opened. Do not
waste
the value of the default option by leaving it blank or using it arbitrarily.
The
default option should be the one most likely to be selected. If there's no
logical default option, default to a null value such as "Select One" that
prompts users to make a selection (see Figure 14)."
(ref: http://www-106.ibm.com/developerworks/usability/library/us-widget/#11)

Best regards,

Ash Donaldson
User Experience Designer
=============================================================
As a user, if I looked in the menu and didn't see an option that made sense,
I would never think that <Select a category> would search through all of
them.  At that point, I would be confused.  I recommend adding a field label
called "Category" (don't need to say "Select a category", that's implied by
the drop-down), then having an "All" option.

Amazon also has a nice approach to this... they have an "All Products"
option in the un-labeled drop-down, which clearly tells you this is a
product selection drop-down.

Donna Tellam

Senior Product Manager

P 303.381.1936 | C 303.521.2426 | F 303.480.3633 | AIM GUIgirl

www.webMethods.com

=============================================================

Just to make sure I've got the description accurate, you've got a setup
similar to this...

Search for: [      ] in [ Select a Category [V]]     [Go]

(hopefully that's close enough...)

My first question is what happens when a user types in a keyword but doesn't
select a category?  Do they receive an error condition or does it default to
"all categories"?

If it's the latter, I'd recommend changing "Select a Category" to default to
"All Categories".  It would address:
- users who do not realize that by not restricting, they're including (not
always true) and want to search on everything
- users who may feel they're forced into selecting a category (subset of the
above)
- users who may not feel that their search term fits into a particular
category
- Eliminating potential for error conditions
- Providing a broad search results set first and allowing users to restrict
as necessary...
- and a few other things...

It would look something like:

Search for: [      ] in [ All Categories [V]]     [Go]

and then on the search results page, build in some nice filtering. We've
seen this above model work very well...

Hope this helps, or lemme know if I'm totally off base with what you were
describing...

Tim Semen
</tss>
=============================================================

"Select a Category" will not equate to "All" in everyone's mind, I can
guarantee that.  Your more clever and perhaps impatient users will know
(or just luck out on) this, but your novice users will not.

Why not include a label that says "Category: " and an option for All and
make it the default?  It is clear and should be well understood.  To be
entirely pedantic, you might include an option on the menu at the top that
reads "Select:"  or "Choose:" etc.

There is probably something somewhere by someone well known who's made
money on this topic, and I've likely paid to read about it.  ;)

- Jim Simpson + http://jimsimpson.net -


=============================================================
I think this depends on whether you have additional search fields or not.
Here are some ideas FYI.

1. Place them on the same line.  In this case, you may not need to have
field title
Keyword: [____________]   [All Cateogries |v] [Search]

or

Search [All Categories |v] [_______________]  [Go]

or other variations of the above.


2.  Placing them into separate lines.  Usually, you need field titles
especially if there are more fields.

Keyword: [____________]
Category: [All     |v]
[Search]

- Cindy
HFE Consulting
http://www.hfec.biz

END OF MESSAGE

    --------------------------------------------------------------
    Tip of the Day: Suspend your subscription if using auto replies
     CHI-WEB: www.sigchi.org/web POSTINGS: mailto:[log in to unmask]
              MODERATORS: mailto:[log in to unmask]
       SUBSCRIPTION CHANGES & FAQ:  www.sigchi.org/web/faq.html
    --------------------------------------------------------------

Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

July 2017, Week 2
June 2017, Week 3
May 2017, Week 1
March 2017, Week 5
March 2017, Week 1
January 2017, Week 4
November 2016, Week 1
September 2016, Week 3
September 2016, Week 1
August 2016, Week 5
August 2016, Week 1
July 2016, Week 2
June 2016, Week 1
April 2016, Week 3
April 2016, Week 2
April 2016, Week 1
March 2016, Week 3
February 2016, Week 4
January 2016, Week 4
January 2016, Week 3
September 2015, Week 3
August 2015, Week 5
August 2015, Week 2
July 2015, Week 3
June 2015, Week 4
June 2015, Week 3
June 2015, Week 1
May 2015, Week 2
April 2015, Week 2
April 2015, Week 1
March 2015, Week 5
March 2015, Week 1
February 2015, Week 4
February 2015, Week 2
January 2015, Week 2
December 2014, Week 1
November 2014, Week 4
November 2014, Week 2
October 2014, Week 4
September 2014, Week 5
July 2014, Week 3
July 2014, Week 2
July 2014, Week 1
April 2014, Week 5
April 2014, Week 4
April 2014, Week 3
April 2014, Week 1
March 2014, Week 4
March 2014, Week 3
March 2014, Week 2
February 2014, Week 2
January 2014, Week 4
January 2014, Week 3
January 2014, Week 2
December 2013, Week 4
December 2013, Week 3
November 2013, Week 2
November 2013, Week 1
October 2013, Week 5
October 2013, Week 2
September 2013, Week 5
September 2013, Week 1
August 2013, Week 3
August 2013, Week 2
July 2013, Week 4
July 2013, Week 1
May 2013, Week 2
April 2013, Week 3
April 2013, Week 1
March 2013, Week 3
February 2013, Week 4
February 2013, Week 3
February 2013, Week 1
January 2013, Week 4
January 2013, Week 1
December 2012, Week 4
December 2012, Week 3
December 2012, Week 1
November 2012, Week 4
November 2012, Week 3
November 2012, Week 2
November 2012, Week 1
October 2012, Week 3
September 2012, Week 3
July 2012, Week 4
July 2012, Week 1
June 2012, Week 4
June 2012, Week 3
June 2012, Week 1
May 2012, Week 3
May 2012, Week 2
April 2012, Week 2
April 2012, Week 1
March 2012, Week 1
February 2012, Week 5
February 2012, Week 4
January 2012, Week 5
January 2012, Week 3
January 2012, Week 2
December 2011, Week 3
December 2011, Week 2
December 2011, Week 1
November 2011, Week 2
November 2011, Week 1
October 2011, Week 3
October 2011, Week 1
September 2011, Week 4
September 2011, Week 2
June 2011, Week 1
May 2011, Week 5
May 2011, Week 4
May 2011, Week 2
May 2011, Week 1
April 2011, Week 5
April 2011, Week 4
March 2011, Week 5
March 2011, Week 3
March 2011, Week 2
February 2011, Week 3
February 2011, Week 2
December 2010, Week 5
November 2010, Week 2
October 2010, Week 4
October 2010, Week 2
September 2010, Week 5
September 2010, Week 4
August 2010, Week 4
August 2010, Week 3
August 2010, Week 1
July 2010, Week 5
July 2010, Week 4
July 2010, Week 3
June 2010, Week 5
June 2010, Week 3
June 2010, Week 2
May 2010, Week 4
April 2010, Week 2
March 2010, Week 1
February 2010, Week 3
January 2010, Week 5
January 2010, Week 3
January 2010, Week 2
December 2009, Week 5
December 2009, Week 4
November 2009, Week 4
November 2009, Week 3
November 2009, Week 2
November 2009, Week 1
October 2009, Week 4
October 2009, Week 3
October 2009, Week 1
September 2009, Week 4
September 2009, Week 3
September 2009, Week 1
August 2009, Week 5
August 2009, Week 4
August 2009, Week 3
August 2009, Week 2
August 2009, Week 1
July 2009, Week 5
July 2009, Week 4
July 2009, Week 3
July 2009, Week 2
July 2009, Week 1
June 2009, Week 5
June 2009, Week 4
June 2009, Week 3
June 2009, Week 2
June 2009, Week 1
May 2009, Week 5
May 2009, Week 4
May 2009, Week 3
May 2009, Week 2
April 2009, Week 4
April 2009, Week 3
April 2009, Week 2
April 2009, Week 1
March 2009, Week 4
March 2009, Week 3
March 2009, Week 2
March 2009, Week 1
February 2009, Week 4
January 2009, Week 4
January 2009, Week 2
December 2008, Week 4
December 2008, Week 3
December 2008, Week 2
December 2008, Week 1
November 2008, Week 3
November 2008, Week 2
November 2008, Week 1
October 2008, Week 4
October 2008, Week 3
October 2008, Week 1
September 2008, Week 5
September 2008, Week 4
September 2008, Week 3
September 2008, Week 2
September 2008, Week 1
August 2008, Week 4
August 2008, Week 3
August 2008, Week 2
August 2008, Week 1
July 2008, Week 5
July 2008, Week 4
July 2008, Week 3
June 2008, Week 4
June 2008, Week 1
May 2008, Week 2
May 2008, Week 1
April 2008, Week 5
April 2008, Week 4
April 2008, Week 3
April 2008, Week 2
April 2008, Week 1
March 2008, Week 5
March 2008, Week 1
February 2008, Week 4
February 2008, Week 3
January 2008, Week 5
January 2008, Week 2
January 2008, Week 1
December 2007, Week 3
December 2007, Week 2
December 2007, Week 1
November 2007, Week 5
November 2007, Week 4
November 2007, Week 3
November 2007, Week 2
November 2007, Week 1
October 2007, Week 5
October 2007, Week 4
October 2007, Week 3
October 2007, Week 1
September 2007, Week 5
September 2007, Week 4
September 2007, Week 2
September 2007, Week 1
August 2007, Week 3
August 2007, Week 2
August 2007, Week 1
July 2007, Week 4
July 2007, Week 3
July 2007, Week 2
July 2007, Week 1
June 2007, Week 4
June 2007, Week 3
June 2007, Week 2
June 2007, Week 1
May 2007, Week 5
May 2007, Week 4
May 2007, Week 3
April 2007, Week 4
April 2007, Week 3
April 2007, Week 2
March 2007, Week 3
March 2007, Week 2
March 2007, Week 1
February 2007, Week 4
February 2007, Week 3
February 2007, Week 2
February 2007, Week 1
January 2007, Week 5
January 2007, Week 4
January 2007, Week 3
December 2006, Week 4
December 2006, Week 3
December 2006, Week 2
December 2006, Week 1
November 2006, Week 5
November 2006, Week 4
November 2006, Week 3
November 2006, Week 2
November 2006, Week 1
October 2006, Week 5
October 2006, Week 4
October 2006, Week 3
October 2006, Week 2
October 2006, Week 1
September 2006, Week 5
September 2006, Week 4
September 2006, Week 3
September 2006, Week 2
September 2006, Week 1
August 2006, Week 5
August 2006, Week 4
August 2006, Week 3
August 2006, Week 2
August 2006, Week 1
July 2006, Week 4
July 2006, Week 3
July 2006, Week 2
July 2006, Week 1
June 2006, Week 5
June 2006, Week 4
June 2006, Week 3
June 2006, Week 2
June 2006, Week 1
May 2006, Week 5
May 2006, Week 4
May 2006, Week 3
May 2006, Week 2
May 2006, Week 1
April 2006, Week 5
April 2006, Week 4
April 2006, Week 3
April 2006, Week 2
April 2006, Week 1
March 2006, Week 4
March 2006, Week 3
March 2006, Week 2
March 2006, Week 1
February 2006, Week 4
February 2006, Week 3
February 2006, Week 2
February 2006, Week 1
January 2006, Week 5
January 2006, Week 4
January 2006, Week 3
January 2006, Week 2
January 2006, Week 1
December 2005, Week 4
December 2005, Week 3
December 2005, Week 2
December 2005, Week 1
November 2005, Week 5
November 2005, Week 4
November 2005, Week 3
November 2005, Week 2
November 2005, Week 1
October 2005, Week 5
October 2005, Week 4
October 2005, Week 3
October 2005, Week 2
October 2005, Week 1
September 2005, Week 5
September 2005, Week 4
September 2005, Week 3
September 2005, Week 2
September 2005, Week 1
August 2005, Week 5
August 2005, Week 4
August 2005, Week 3
August 2005, Week 2
August 2005, Week 1
July 2005, Week 5
July 2005, Week 4
July 2005, Week 3
July 2005, Week 2
July 2005, Week 1
June 2005, Week 4
June 2005, Week 3
June 2005, Week 2
June 2005, Week 1
May 2005, Week 5
May 2005, Week 4
May 2005, Week 3
May 2005, Week 2
May 2005, Week 1
April 2005, Week 5
April 2005, Week 4
April 2005, Week 3
April 2005, Week 2
April 2005, Week 1
March 2005, Week 5
March 2005, Week 4
March 2005, Week 3
March 2005, Week 2
March 2005, Week 1
February 2005, Week 4
February 2005, Week 3
February 2005, Week 2
February 2005, Week 1
January 2005, Week 5
January 2005, Week 4
January 2005, Week 3
January 2005, Week 2
January 2005, Week 1
December 2004, Week 5
December 2004, Week 4
December 2004, Week 3
December 2004, Week 2
December 2004, Week 1
November 2004, Week 5
November 2004, Week 4
November 2004, Week 3
November 2004, Week 2
November 2004, Week 1
October 2004, Week 5
October 2004, Week 4
October 2004, Week 3
October 2004, Week 2
October 2004, Week 1
September 2004, Week 5
September 2004, Week 4
September 2004, Week 3
September 2004, Week 2
September 2004, Week 1
August 2004, Week 5
August 2004, Week 4
August 2004, Week 3
August 2004, Week 2
August 2004, Week 1
July 2004, Week 5
July 2004, Week 4
July 2004, Week 3
July 2004, Week 2
July 2004, Week 1
June 2004, Week 5
June 2004, Week 4
June 2004, Week 3
June 2004, Week 2
June 2004, Week 1
May 2004, Week 5
May 2004, Week 4
May 2004, Week 3
May 2004, Week 2
May 2004, Week 1
April 2004, Week 5
April 2004, Week 4
April 2004, Week 3
April 2004, Week 2
April 2004, Week 1
March 2004, Week 1
February 2004, Week 4
February 2004, Week 2
February 2004, Week 1
January 2004, Week 4
January 2004, Week 3
January 2004, Week 2
January 2004, Week 1
December 2003, Week 4
December 2003, Week 3
December 2003, Week 2
December 2003, Week 1
November 2003, Week 5
November 2003, Week 4
November 2003, Week 3
November 2003, Week 2
November 2003, Week 1
October 2003, Week 5
October 2003, Week 4
October 2003, Week 3
October 2003, Week 2
October 2003, Week 1
September 2003, Week 5
September 2003, Week 4
September 2003, Week 3
September 2003, Week 2
September 2003, Week 1
August 2003, Week 5
August 2003, Week 4
August 2003, Week 3
August 2003, Week 2
August 2003, Week 1
July 2003, Week 5
July 2003, Week 4
July 2003, Week 3
July 2003, Week 2
July 2003, Week 1
June 2003, Week 5
June 2003, Week 4
June 2003, Week 3
June 2003, Week 2
June 2003, Week 1
May 2003, Week 5
May 2003, Week 4
May 2003, Week 3
May 2003, Week 2
May 2003, Week 1
April 2003, Week 5
April 2003, Week 4
April 2003, Week 3
April 2003, Week 2
April 2003, Week 1
March 2003, Week 5
March 2003, Week 4
March 2003, Week 3
March 2003, Week 2
March 2003, Week 1
February 2003, Week 4
February 2003, Week 3
February 2003, Week 2
February 2003, Week 1
January 2003, Week 5
January 2003, Week 4
January 2003, Week 3
January 2003, Week 2
January 2003, Week 1
December 2002, Week 5
December 2002, Week 4
December 2002, Week 3
December 2002, Week 2
December 2002, Week 1
November 2002, Week 5
November 2002, Week 4
November 2002, Week 3
November 2002, Week 2
November 2002, Week 1
October 2002, Week 5
October 2002, Week 4
October 2002, Week 3
October 2002, Week 2
October 2002, Week 1
September 2002, Week 5
September 2002, Week 4
September 2002, Week 3
September 2002, Week 2
September 2002, Week 1
August 2002, Week 4
August 2002, Week 3
August 2002, Week 2
August 2002, Week 1
July 2002, Week 5
July 2002, Week 4
July 2002, Week 3
July 2002, Week 2
July 2002, Week 1
June 2002, Week 5
June 2002, Week 4
June 2002, Week 3
June 2002, Week 2
June 2002, Week 1
May 2002, Week 5
May 2002, Week 4
May 2002, Week 3
May 2002, Week 2
May 2002, Week 1
April 2002, Week 5
April 2002, Week 4
April 2002, Week 3
April 2002, Week 2
April 2002, Week 1
March 2002, Week 5
March 2002, Week 4
March 2002, Week 3
March 2002, Week 2
March 2002, Week 1
February 2002, Week 4
February 2002, Week 3
February 2002, Week 2
February 2002, Week 1
January 2002, Week 5
January 2002, Week 4
January 2002, Week 3
January 2002, Week 2
January 2002, Week 1
December 2001, Week 5
December 2001, Week 4
December 2001, Week 3
December 2001, Week 2
December 2001, Week 1
November 2001, Week 5
November 2001, Week 3
November 2001, Week 1
October 2001, Week 5
October 2001, Week 4
October 2001, Week 3
October 2001, Week 2
October 2001, Week 1
September 2001, Week 5
September 2001, Week 4
September 2001, Week 3
September 2001, Week 2
September 2001, Week 1
August 2001, Week 5
August 2001, Week 4
August 2001, Week 3
August 2001, Week 2
August 2001, Week 1
July 2001, Week 5
July 2001, Week 4
July 2001, Week 3
July 2001, Week 2
July 2001, Week 1
June 2001, Week 5
June 2001, Week 4
June 2001, Week 3
June 2001, Week 2
June 2001, Week 1
May 2001, Week 5
May 2001, Week 4
May 2001, Week 3
May 2001, Week 2
May 2001, Week 1
April 2001, Week 5
April 2001, Week 4
April 2001, Week 3
April 2001, Week 2
April 2001, Week 1
March 2001, Week 5
March 2001, Week 4
March 2001, Week 3
March 2001, Week 2
March 2001, Week 1
February 2001, Week 4
February 2001, Week 3
February 2001, Week 2
February 2001, Week 1
January 2001, Week 5
January 2001, Week 4
January 2001, Week 3
January 2001, Week 2
January 2001, Week 1
December 2000, Week 5
December 2000, Week 4
December 2000, Week 3
December 2000, Week 2
December 2000, Week 1
November 2000, Week 5
November 2000, Week 4
November 2000, Week 3
November 2000, Week 2
November 2000, Week 1
October 2000, Week 5
October 2000, Week 4
October 2000, Week 3
October 2000, Week 2
October 2000, Week 1
September 2000, Week 5
September 2000, Week 4
September 2000, Week 3
September 2000, Week 2
September 2000, Week 1
August 2000, Week 5
August 2000, Week 4
August 2000, Week 3
August 2000, Week 2
August 2000, Week 1
July 2000, Week 5
July 2000, Week 4
July 2000, Week 3
July 2000, Week 2
July 2000, Week 1
June 2000, Week 5
June 2000, Week 4
June 2000, Week 3
June 2000, Week 2
June 2000, Week 1
May 2000, Week 5
May 2000, Week 4
May 2000, Week 3
May 2000, Week 2
May 2000, Week 1
April 2000, Week 5
April 2000, Week 4
April 2000, Week 3
April 2000, Week 2
April 2000, Week 1
March 2000, Week 5
March 2000, Week 4
March 2000, Week 3
March 2000, Week 2
March 2000, Week 1
February 2000, Week 5
February 2000, Week 4
February 2000, Week 3
February 2000, Week 2
February 2000, Week 1
January 2000, Week 5
January 2000, Week 4
January 2000, Week 3
January 2000, Week 2
January 2000, Week 1
December 1999, Week 5
December 1999, Week 4
December 1999, Week 3
December 1999, Week 2
December 1999, Week 1
November 1999, Week 5
November 1999, Week 4
November 1999, Week 3
November 1999, Week 2
November 1999, Week 1
October 1999, Week 5
October 1999, Week 4
October 1999, Week 3
October 1999, Week 2
October 1999, Week 1
September 1999, Week 5
September 1999, Week 4
September 1999, Week 3
September 1999, Week 2
September 1999, Week 1
August 1999, Week 5
August 1999, Week 4
August 1999, Week 3
August 1999, Week 2
August 1999, Week 1
July 1999, Week 5
July 1999, Week 4
July 1999, Week 3
July 1999, Week 2
July 1999, Week 1
June 1999, Week 5
June 1999, Week 4
June 1999, Week 3
June 1999, Week 2
June 1999, Week 1
May 1999, Week 4
May 1999, Week 3
May 1999, Week 2
May 1999, Week 1
April 1999, Week 5
April 1999, Week 4
April 1999, Week 3
April 1999, Week 2
April 1999, Week 1
March 1999, Week 5
March 1999, Week 4
March 1999, Week 3
March 1999, Week 2
March 1999, Week 1
February 1999, Week 4
February 1999, Week 3
February 1999, Week 2
February 1999, Week 1
January 1999, Week 5
January 1999, Week 4
January 1999, Week 3
January 1999, Week 2
January 1999, Week 1
December 1998, Week 5
December 1998, Week 3
December 1998, Week 2
December 1998, Week 1
November 1998, Week 5
November 1998, Week 4
November 1998, Week 3
November 1998, Week 2
November 1998, Week 1
October 1998, Week 5
October 1998, Week 4
October 1998, Week 3
October 1998, Week 2
October 1998, Week 1
September 1998, Week 4
September 1998, Week 3
September 1998, Week 2
September 1998, Week 1
August 1998, Week 5
August 1998, Week 4
August 1998, Week 3
August 1998, Week 2
August 1998, Week 1
July 1998, Week 5
July 1998, Week 4
July 1998, Week 3
July 1998, Week 2
July 1998, Week 1
June 1998, Week 4
June 1998, Week 3
June 1998, Week 2
June 1998, Week 1
May 1998, Week 4
May 1998, Week 3
May 1998, Week 2
May 1998, Week 1
April 1998, Week 5
April 1998, Week 4
April 1998, Week 3
April 1998, Week 2
April 1998, Week 1
March 1998, Week 5
March 1998, Week 4
March 1998, Week 3
March 1998, Week 2
March 1998, Week 1
February 1998, Week 2
February 1998, Week 1
January 1998, Week 4
January 1998, Week 3
January 1998, Week 2
January 1998, Week 1
December 1997, Week 4
December 1997, Week 3
December 1997, Week 2
December 1997, Week 1
November 1997, Week 4
November 1997, Week 2
October 1997, Week 3
September 1997, Week 5
September 1997, Week 4
September 1997, Week 3
September 1997, Week 1
August 1997, Week 4
August 1997, Week 2
August 1997, Week 1
July 1997, Week 4
July 1997, Week 3
July 1997, Week 2
June 1997, Week 5
June 1997, Week 4
June 1997, Week 2
June 1997, Week 1
May 1997, Week 5
May 1997, Week 4
May 1997, Week 3
April 1997, Week 5
April 1997, Week 4
April 1997, Week 3
April 1997, Week 2
April 1997, Week 1
March 1997, Week 4
March 1997, Week 3
March 1997, Week 2
March 1997, Week 1
February 1997, Week 4
February 1997, Week 3
February 1997, Week 2
February 1997, Week 1
January 1997, Week 5

ATOM RSS1 RSS2



LISTSERV.ACM.ORG

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager