A year-by-year tour of how Facebook has been taking over the world

Facebook is easily the most widely used social network in the world today, an international success. Since its start in 2004, it has grown to more than 300 million active users, which is unprecedented. No social network has ever been as big as Facebook is now.
This post takes a look at Facebook’s geographic expansion from its start in 2004 until today in 2009, showing how its popularity has grown year by year.