YouTube is a place to discover, watch, upload and share videos.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

foursquare

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web page...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...

Bored with generic social networks? Come join the fun on hi5! Every day, millions of people meet up, hang out, play games and have fun on hi5. Check ...

Followgram.me - Get your Instagram Follow Button, Instagram Vanity Url, Instagram Album, and Instagram Feed RSS

Twitter is without a doubt the best way to share and discover what is happening right now.

Photo-sharing community. Discover the world through photos.

Google+ aims to make sharing on the web more like sharing in real life. Check out Circles, Messenger and Hangouts, just a few of the things we&#39...

Diigo Groups provides a ground-breaking collaborative research and learning tool that allows any group of people to pool their findings through group ...