Bing makes search deals with Facebook and Twitter
Bing showed off some impressive features of its Twitter search product at the conference, including filtering of duplicate tweets and adult content. It also expands bit.ly URLs, so you know where those shortlinks lead. Unlike Twitter's own search, Bing's product attempts to deliver not just the most recent tweets, but the most relevant.
Apparently, both Twitter and Facebook have been talking to Google as well, but Bing is first to make a deal. The two deals are separate and non-exclusive, meaning that Twitter and Facebook aren't getting into bed together (yet) and that there's still room for Google to make a play like the one Microsoft just pulled off.