Accessible Online Math Resources

I profess in no way to be an expert on the topic, but recently provided these resources to someone and thought I would pass them on:

As far as I can tell, one of the most exciting initiatives in this area is the
NIDE MathML project available at the MathML Accessibility Project Page or the W3C Math Homepage

The Program Access Project is geared toward engineering and science, but the Principal Investigator is a Math professor, so it may take a mathematical slant.

Norm Coombs, noted accessibility expert has also done some work in
this area as well. He is involved with a
Reaching New Audiences with New Media: Opening the Door to Science and Mathematics Project and has a list of resources on the topic.

This Mathematics Accessible to Visually Impaired Students project has finished, but they still have some good resources listed at
their site. They have a page with current contact information That links to to their old main page

Lastly, the Regional Alliance for Science, Engineering, and Mathematics – Squared has a number of great resources as well- Enjoy!