Kathie, take a look at the following article:


Title: Making Web-based tables accessible for users of screen readers
Author(s): Dagmar Amtmann; Kurt Johnson; Debbie Cook 
Journal: Library Hi Tech 
Year: 2002. Volume 20 Number. Issue 2. Page: 221 -- 231 

Publisher: Emerald 

Abstract: Reading and understanding information presented in tabular format have posed specific challenges for blind individuals who use screen readers to access computers. In this article the results of a study of the types of problems blind individuals using screen readers experienced, when reading tables on the World Wide Web, have been summarized. Nine blind participants were asked to extract information from tables with varying levels of complexity. The participants used combinations of commonly used screen readers and Web browsers. The presentation of information in the tables was systematically varied through use of several HTML coding methods. The participants in the study found tasks that required them to extract information from tables challenging and often frustrating. Suggestions for making tables accessible to users of screen readers are provided.


Axel
Library
University of Wisconsin-Stevens Point


-----Original Message-----
From: Schneider, Katherine S. [mailto:[log in to unmask]] 
Sent: Wednesday, October 02, 2002 8:54 AM
To: [log in to unmask]
Subject: accessibility standards for tables on webpages

Has anybody done any work on accessibility of tables on webpages, as in standards or guidelines?  I know 508 and w3c mention them, but they don't seem to provide much concrete guidance.  Kathie