Facebook today announced on its developer blog the introduction of a new feature: the recommendation bar. It is a new social plug-in that helps people find articles based on what their friends like and share from that site. In case you were wondering how it works – if you visit a page that uses the plug-in, you’ll see a small box on the bottom right corner of the screen. The box will allow you to Like the page you’re on as well as pull up a list. On the list, you’ll get suggested links based on what your friends have shared on that site before. I.e. if you’re on Ubergizmo (we don’t have the plug-in btw), you’ll get a list of other Ubergizmo articles that your friends have liked/shared before. A pretty simple and nifty feature if I might say so myself, though I can’t say how effective it is yet. At the moment, sites such as Mashable, Wetpaint, and The Mirror are already using it. Give it a shot and let us know what you think.