In the new virtual age, social networking sites have taken the world by storm. With 175 million users and counting, Facebook has risen above the rest. In fact, if there were a Facebook nation, it would be the world's 6th largest country!

People around the world are reconnecting with long-lost friends and relatives, uniting on common ground from politics to Chia pets. Every day, half a million people join the social network. 

Baffled by Facebook? See how it all got started and learn the lingo!