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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 ...

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Prezi is the zooming presentation editor

Latest news and features on science issues that matter including earth, environment, and space. Get your science news from the most trusted source!

At FastCap, we strive to bring you not only the most innovative, but most practical and relevant woodworking tools and products.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...

Mayo Clinic — Comprehensive medical diagnosis and treatment; locations and services; request an appointment.

Travel community with vacation rental, villa, hotel, and restaurant reviews for Europe and worldwide. Trip reports, travel guides, message board (forums), travel photos.

Air Purification Technologies and Secrets the Industry doesn

Reporting our world daily: original nature and science coverage from National Geographic.

Lung cancer is the leading cause of cancer deaths worldwide. Despite being so common, navigating the health care system from lung cancer diagnosis to lung cancer treatment can be a lonely and frightening time. In this About.com health guide we