This document discusses popular social media platforms and provides statistics on their usage. It lists the top social media sites, including Facebook, which has over 1 billion monthly active users and ranks second globally. Twitter has over 241 million monthly active users and ranks 11th globally. Google+ reaches over 1 billion users and ranks first globally. Other widely used social media platforms mentioned include LinkedIn, Tumblr, Instagram, Flickr, VK, MySpace, Tagged, Meetup, Ask.fm, and MeetMe, along with their estimated monthly unique visitors and global Alexa rankings.