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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 friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

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

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

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

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Academia.edu helps academics follow the latest research.

Photobucket offers image hosting, free photo sharing and video sharing. Upload your photos, host your videos, and share them with friends and family.

Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you...

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