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Academia.edu helps academics follow the latest research.

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...

Activate study mode with book reviews, free essays, course notes, flashcards and other study tools. Millions of students use us to help with their homework assignments.

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

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National Geographic is the source for photos, free desktop wallpapers of places, animals, nature, underwater, travel, and more, as well as tips and photographer bios.

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 ...

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

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From Britannica, explore the most trusted online kids encyclopedia for homework help and general knowledge information on a variety of subjects like science, history, the arts, math, etc.