Facebook has set out plans that will see promotional posts that ask fans to buy something, enter a competition or install an app appear less in news streams. This comes just days after Facebook revealed a new set of privacy policies that will allow users to query why they have been targeted with certain ads. The move will see posts that purely push viewers to buy something, posts that push people to enter promotions and sweepstakes with no real context and those that reuse the exact same content from ads penalised.