Social network seems to be the basis of the internet now. It's where people go a lot of the time and spend a lot of their time there. You're on a social network now, every blog you read is a social network. My living depends on social networking, weird to think of it like that isn't it. But obviously networks like Facebook and Twitter have a lot more involvement from the users, whereby they can post updates, pictures and whatever else. Check out this infographic on some key bits of info regarding social networks.