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...

Maps, directions, photos and street views for mobile and desktop computers.

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

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

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...

Yahoo! Groups offers free mailing lists, photo & file sharing, group calendars and more. Discuss hot topics, share interests, join online communit...