Social networks are ...

A structure able of communicating among people or institutions. Through the internet you can establish relationships that create groups or communities with common interests.

They suppose an unlimited contact and in real time.

The 15 Most Used Social Networks

Ranking Most Used Social Networks

Facebook 1

Whatsapp 2

Youtube 3
Instagram 4
Tumblr 5
Twitter 6
Snapchat 7
Skype 8
Line 9
Badoo 10
Vine 11
Pinterest 12
Google+ 13
Telegram 14
Spotify 15