The “sponsored stories” feature will be a default for the social networking site, used by 800 million, and there won’t be a way to opt out of your face being shown on ads.

A Facebook spokeswoman said: “Starting early next year, we will gradually begin showing sponsored stories in news feed. Our goal is to do this thoughtfully and slowly.

“We hope to show people no more than one sponsored story in their news feeds per day and the story will be clearly labelled.”
But only your friends will be able to see your photos on the network.

Sponsored stories promote events you have RSVP’d to and things you “like” to other users, using your photos.

The website has experimented with the placement of sponsored material in the news feed in 2006, but stopped in 2008.

The website has used ads in the sidebar for several years, but from next month there will be sponsored content on the news feed and side bar.

The ads won’t appear on mobile devices yet but Facebook is considering the idea.

Linked in have previously sparked a negative response from users after it served up similar social ads, but allowed users to opt out after criticism.

Facebook has also recently caused controversy with its timeline feature, which allows users to see each other’s life stories on screen.