Facebook is turning ten --- A decade after Mark Zuckerberg founded the social networking site in his Harvard dorm room, it's the biggest show in town with more than a billion users worldwide.

Facebook's rapid growth has also introduced new concerns about privacy and online bullying. For some, the site has lost some of its luster.

A decade on, Facebook is still the gold standard for social networking. But the site is - much like its users - still finding its way.

Facebook was founded on February 4, 2004.