I'm sure I'm not alone in having
http://stackoverflow.com/questions/tagged/latex bookmarked. It's the only part of SO I use (I'm not a programmer, so most of the rest is over my head.) It would be nice if a little banner appeared on that page, and at the top of any question tagged
tex that informs SO users of this site's existence. After all, the SO latex tag is going to be less used now that this site exists, I expect...
[Edit: I have asked the same question on SO meta. Now all we can do is wait for public beta...]