Facebook, Twitter, Twoo, LinkedIn and many more are the good social sites which are now on the top of the market. Previously it was Orkut and all but after the launch of Facebook, It has changed the face of social networking.

Old ones:

MySpace - No one rarely goes on there.

New ones kind of But still good:

Instagram

Kik

Twitter

Vine

Yeah that's about it.

Facebook instagram/kick messenger um some really old ones are aim and I guess that's all I no people go on now sorry . Hope it helps

Facebook.com

Twitter.com

MySpace.com ( nobody uses it though )

YouTube.com

Reddit.com

Buzzfeed.com

Vine.com