Four sophomores at the University of Illinois at Urbana-Champaign, built a Chrome browser extension that tags links in Facebook feeds as verified or not verified by taking into account factors such as the source’s credibility and cross-checking the content with other news stories. Where a post appears to be false, the plug-in will provide a summary of more credible information on the topic online.
They’ve called it FiB, it only took a day and a half to create, and it’s open source.

Read more about it here ::