Facebook released following new tools called “social plugins”:
Like: you can show your friends that you're interested in their status updates, photos and links by clicking "Like." You'll begin seeing "Like," or in some cases "Recommend," buttons appearing on popular websites spanning a variety of industrie. If you decide you no longer like something, you can always remove connection or "unlike" content on original site. You're always in control of the things you connect to or like.
Activity Feed surfaces the actions your friends are taking on a website. When you're logged into Facebook and visit CNN.com, you will instantly see articles & topics your friends’re sharing, recommending & commenting on via Activity Feed.
Recommendations help make sites more relevant to you by highlighting content based on top "Likes" across a site. Think of it as a people-powered "most popular" list. For e.g., if logged into Facebook, you can visit NHL.com and instantly see articles, game summaries and NHL recaps people are liking & sharing with their friends most often, in real time.
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