Facebook

is a free website social network created by Mark Zuckerberg. Originally a site for students of Harvard University, but now is open to anyone with an email address. Users can participate in one or more social networks in relation to their academic status, place of work or geographic region. It has received much attention in the blogosphere and the media to become a platform on which third parties can develop applications and do business from the social network. However, there are concerns about possible business model, since the results in advertising have proved very poor. [Citation needed] In mid-2007 launched its version in French, German and Spanish to boost its expansion outside the United States because its users are concentrated in the U.S., Canada and Britain.