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Esri Video showcases high quality videos covering GIS events, products, people and topics, as well as the latest and most popular GIS videos.

The Nuclear Threat Initiative (NTI) is a non-profit organization with a mission to strengthen global security by reducing the risk of use and preventing the spread of nuclear, biological and chemical weapons.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

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 ...

Thefamouspeople.com presents life history and biography of world famous people in various spheres of life

National Geographic Education brings geography, social studies and science to life. Using real-world examples and National Geographic's rich media, educators, families, and students learn about the world and the people in it.

Fact Monster is a free reference site for students, teachers, and parents. Get homework help and find facts on thousands of subjects, including sports, entertainment, geography, history, biography, education, and health.

Infoplease.com, a free, authoritative, and respected reference for Internet users, provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus. Infoplease.com contains facts on all subjects including sports, entertainment, techno...

First Monday is one of the first openly accessible, peer–reviewed journals on the Internet, solely devoted to the Internet.

WhiteHouse.gov is the official web site for the White House and President Barack Obama, the 44th President of the United States. This site is a source for information about the President, White House news and policies, White House history, and the fe...