Since News Feed launched last year, it has proven to be an extremely useful way to find out what is happening in your friends' lives, both online and offline. But as the number of potential stories and story types grows, we wanted to make sure you continue to see the stories that matter most to you.

This morning we launched feedback controls on all News Feed stories to allow users to tell Facebook what they think of a story. Did a particular story make you smile? Give it a thumbs up. Did a story annoy you? Click on the x icon and the story will be collapsed and your opinion will be used to make similar stories less common. News Feed will use this feedback to further tailor stories for you and to identify the types of stories and applications you might like to see in the future.