Is there a simple way to test a web site for accessibility? Preferably a free tool, rather than a paid-for one!
Here's one: http://www.contentquality.com/ I remember being more, like Bobby (which is pay only now IIRC), you might want to search google for "accessibility validation service" or "WCAG validator". Also, if you have Dreamweaver MX 2004 there's an integrated accessibility checker. Remember though that these validators don't tell anything (eg. semantics) and also address things that aren't important anymore these days.