Make sure your ALT tags have text - or else!
All the way back in 2006, the U.S. District Court for the Northern District of California ruled that Target could be sued over their site not being accessible to the blind. Now over half way through 2008, Target has reached a settlement with regards to the class action lawsuit that ensued.
The National Federation of the Blind (NFB) sued Target, and they settled for $6 million in damages. That's a lot of money for not including some "alt" tags, which was the biggest problem with Target's site. Dave Chartier at Ars Technica explains, "Specifically at issue in Target's case is a lack of 'alt' tags throughout its site, tags which are used by screen reading technology to help disabled users navigate web sites."