I know there was some consideration in the past about making sure Askubuntu was accessible (usable with screenreader software, e.g.).  For instance, the UDS-N session in October 2010 included talk about 508 compliance (documented in this post :  http://meta.askubuntu.com/questions/631/what-was-discussed-and-what-was-the-outcome-of-the-ask-ubuntu-uds-n-session ).

Has there been any more work done on 508 compliance or accessibility?   
What further actions can we take to make sure AskUbuntu is an accessible site?

Here are some related meta.stackoverflow posts: 

[Accessibility with Screen Reading Software](http://meta.stackexchange.com/questions/68898/how-accessible-are-the-stack-exchange-sites-for-users-of-screen-reader-software)   

[Bringing Up Accessibility Issues](https://meta.stackoverflow.com/questions5207/stackoverflow-accessibility-with-screen-reading-software)

[](http://meta.stackexchange.com/questions/69977/best-way-to-bring-up-accessibility-issues-with-stack-exchange-sites)

[Encouraging People to Use Alt-Text](http://meta.stackexchange.com/questions/74048/encourage-people-to-use-alt-text)