by Sharon Housley
http://www.feedforall.com

Website usability is more than just a good navigational structure. A large number of people have visual or hearing disabilities, so you should design your website in ways that allow those with either minor or significant impairments to view and navigate your web content. The following tips will help expand your website's usability so that all users, regardless of their sensory perception and abilities, are able to take advantage of your web content...