I have been enjoying editing the T'ai Chi articles at:
As well, I have been working on other more or less related articles in the Wikipedia, and it is actually entertaining for a pedant such as myself...
The Yang family section of the article needs some filling out, however, (especially considering how important they are to T'ai Chi history) and who better to work on it than you guys?
I have already given a link to this site in the article, but you erudite lot should certainly be able to improve on what is there describing the Yang family in particular and other subjects in general, I'm sure.
There is a policy against advertising, so I haven't mentioned any living teachers from any of the styles, but there is plenty of room to get some more good information about T'ai Chi out to some reasonably intelligent people.