As previously reported, Microsoft has made deals with both Facebook and Twitter, which will see Bing feature updates from both networks in real-time search efforts. To me, this says that social media just became an even bigger part of search engine marketing, particularly with Google also on board with Twitter and rumored to be talking to Facebook. Bing has already made a beta version of its Twitter search available to users at bing.com/twitter. The most interesting aspect of Bing's Twitter search is that it offers something plain old Twitter Search (formerly Summize) doesn't. That is a relevancy factor (or at least an attempted relevancy factor).