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...

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...

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

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

Prezi is the zooming presentation editor

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

Schoology is a learning management system (LMS) and social network that makes it easy to create and share academic content.

Diigo is a powerful research tool and a knowledge-sharing community