TOP 15 most visited Social Media sites (@eBiz)
Facebook If you don't know what it is, you probably don't know what a social network is
Twitter You write "tweets" on this very useless site, unless you like following celebrity tweets
LinkedIn I'm pretty sure this one falls more on the business/hiring side of things?
Pinterest A Social Network revolving around pinned photographs of interest that people share
Google Plus Google Labs got in on this, but fell way behind Facebook, which is over 3x more used
Tumblr the most popular Blog site on the internet, is also a Social Network
Instagram Another photo website for personal photos, the iOS app has great filters!
VK I have no idea what this is, but it was on the list of 15 most popular social networks
Flickr I think it started as just a photo site, but is now a social network of photos
Vine.Co ???
MeetUp ???
Tagged ???
Ask.fm ???
MeetMe ???
Classmates A social network for finding fellow past classmates