Microsoft's search engine, Bing, has teamed up with Facebook to provide users with search results based on their Facebook profile (such as their interests, likes, and friends), to create a product simply called "Liked Results." Mediaweek explains it like this: If you search for a movie, you will get results back that will include which of your Facebook friends either liked or disliked the film, in addition to Bing's regular search results.
Of course, Bing will give you the option to disable the integration of your Facebook profile. Mark Zuckerberg, who needs no introduction, also went on record at the press conference to say that they will only be using information that Facebook users have made public. So, anything you specify as private stays that way. There is the question however, that even though people make things public on Facebook, are they willing to let it appear in search engines? Facebook is no stranger to ciriticism, and with over 500 million users, someone is bound to be upset.
Additionally, there will be a Facebook Profile Search Tool on Bing's page that helps you find old friends and reconnect, either by friend request or message. Search results will also utilize your friend circle to determine who you might be looking for.