Under the terms of service, Facebook has rights to freely use anything people add to the website even after members delete material or close accounts.

"It is common language in every website because their cut-throat lawyer says you need to cover yourself," said Future of Privacy Forum director Jules Polonetsky.

"This doesn't mean that Facebook can make a mini-series on your life or write a book about you, but they might be able to create a feed that lets your friends on Twitter know what you're doing. Folks should just calm down."