Facebook, in its continuing efforts to police the News Feed and make it more relevant to people, announced a change last week that may have some publishers scrambling. Facebook is attempting to curb “like-baiting,” where users are encouraged to respond to a message with a Like or a share. Facebook said its research showed such posts are 15 percent less effective than other page posts.

Facbeook also changed its algorithm to remove content that’s frequently uploaded to Facebook, and posts that contain “spammy” links to shady websites. The results, Facebook believes, won’t be seen by most sites, but those “who are frequently and intentionally creating feed spam will see their distribution decrease over the next few months.”

Source: GigaOm