There is a
Facebook page, and it used to announce submissions and acceptances, but it hasn't been updated since October 2012. I'm not sure if announcing every submission is the right role for that page even if it does come back - maybe less frequent announcements of major runs and other site news might be more appropriate - but either way it would be nice if it came back.
Having a web IRC client link on the homepage would be great. Tons of sites do it very successfully, and it lowers the barrier to entry a lot. That said, perhaps it should default to, say, #tasvideos-homepage or something; a huge flood of uninformed users might not be what the #tasvideos community is looking for :)
One thing that might get TASVideos some more awareness and respect would be TASers contributing their knowledge the new
SDA knowledgebase/wiki, and noting which strats are TAS only, perhaps with links to gifs/timestamps in official encodes. Even if you are not a TASer, moving our GameResources content over there and cleaning it up could be useful.
I'm not actually sure what their policies are on TAS-only content. There seems to be limited (but not zero) inclusion at the moment. We definitely don't want to be seen as invaders, but I think everyone in both communities is pretty aware by now that we are not enemies, and that shared knowledge has improved TASes and RTAs alike, so I would hope we can find a home there. If it eventually completely replaces our GameResources pages, I for one would see that as a massive improvement.