InsideFacebook shares that Some Facebook users are seeing prompts in News Feed to Like pages related to the URLs their friends share.
For example, if a user Likes a post from a friend who shared a link to the New York Times, Facebook might prompt the user to Like the New York Times page directly from the post. Facebook is testing language like “Want to see more from [this publisher]?”
The feature seems aimed at getting users to discover more relevant content in their feeds, while also building connections that will improve ad targeting, Graph Search and other personalized aspects of Facebook.
Read more details on this feature at insidefacebook.