Airtime - http://allthingsd.com/20121002/like-eating-glass-sean-parker-on-airtimes-bumpy-launch-exec-departures-and-more/
Blooie - http://techcrunch.com/2012/10/03/blooie-launches-its-chat-platform-for-online-publishers-powered-by-the-interest-graph/
Not a fan of video chat, too evasive but matching people around web content is interesting.
Thoughts?