Facebook has announced changes in advertising policies which will see newsfeeds contain fewer ads for products and services that users are not interested in.
Announcing the move last night, Facebook said: "When deciding which ad to show to which groups of people, we are placing more emphasis on feedback we receive from people about ads, including how often people report or hide an ad.
"If someone always hides ads for electronics, we will reduce the number of those types of ads that we show to them," the company said.
Facebook said some marketers "may see some variation in the distribution of their ads" in coming weeks.
Facebook is rumoured to be trialling video ads on newsfeeds soon, with these 15 second ads expected to cost between $1m and $2.4m depending on reach.