There are some Web Accessibility guidelines that all developers should be following

[skinz]

There are some very useful guidelines that all developers should be following.

Take a look at w3c.org section called Web Accessibility Initiative (WAI). Web Accessibility Initiative (WAI) - home page
http://bobby.watchfire.com/bobby/html/en/index.jsp
Deaf Blind UK

You should check out Deaf Blind UK - the official website of the charity DEAFBLIND UK is designed by a man who is both deaf AND blind!

http://www.rnib.org.uk/digital/

http://www.disability.gov.uk/dda/index.html