Create, record and share the sounds you create anywhere to friends, family and the world with SoundCloud, the world

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...

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

TED is a small nonprofit devoted to Ideas Worth Spreading -- through TED.com, our annual conferences, the annual TED Prize and local TEDx events.

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

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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...

Academia.edu helps academics follow the latest research.

God made the integers all else is the work of man!

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...