Microsoft announced yesterday that it will soon begin rolling out a major upgrade to its Bing search engine that will integrate data from multiple social networks with search results. Initially, the new “Friends who might know” column that will appear alongside search results will only include data from Facebook, but integration with Twitter, Blogger, LinkedIn, Quora, Foursquare and even Google+ is coming. It’s certainly the most comprehensive bid yet to make social search a broadly useful tool. Meanwhile, The Verge reported yesterday that Microsoft may be bringing Internet Explorer 9 to the Xbox 360. The Xbox currently includes Bing voice search, but it’s limited to media results and has been criticized as being difficult to use. According to The Verge, the IE 9 integration would include full Kinect functionality and would enable Xbox users to search the whole web. If the report is correct, it could mean bringing Bing’s new socially powered search to the Xbox, which eventually could add an important new element to content discovery to what is already the most popular over-the-top video platform in the digital living room.