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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.

National Geographic Adventure presents the best in adventure travel and ecotourism, with destinations, photos, videos, maps, gear, more.

A different astronomy and space science related image is featured each day, along with a brief explanation.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and culture at Wired.com.

Rowing on row2k, one of the premier sources of rowing and sculling news, rowing results, rowing information, photos, interviews, and general information about the sport of rowing.

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 ...

David Cenciotti's weblog

Classic Trains magazine celebrates the

Space.com provides information on everything Space - satellites, stars, astronomy, the Sun, planets, NASA and more.

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Explore HISTORY shows, watch videos and full episodes, play games and access articles on historical topics at History.com.