Facebook's has grown to a user-base of about 350 million, making the it single most popular social network on the web. With an estimated 1734 million people connected to the Internet today, this effectively means that one in every five Internet users have a Facebook account.

In light of its massive global popularity, Facebook has decided to upgrade its 'regional network' based privacy control. In an open letter to users, founder Mark Zuckerberg has highlighted how the existing network based privacy control is proving to be ineffective and Facebook will now implement a new, simple privacy model that will allow the user greater control over his or her information.

The letter can be found here: http://bit.ly/7vMW87