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

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

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

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

Geocaching is a treasure hunting game where you use a GPS to hide and seek containers with other participants in the activity. Geocaching.com is the l...

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

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...

The Internet Chess Club, where beginners to grandmasters play online. Serious chess. Serious fun!

Free Games and Building Games! A virtual world for kids with user-created castles, cars, spaceships, swords, battles, trucks, zombies and awesome des...