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Leading source for news, video and opinion on politics, business, world and national news, science, travel, entertainment and more. Our local coverage includes reporting on education, crime, weather, traffic, real estate, jobs and cars for DC, Maryla...

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.

Transition Voice is an online magazine covering peak oil, global warming and the economy, with a focus on the international transition to a clean economy.

Searching for the Lost Tribes of the House of Israel who are yearning to go or move to Israel and discover your Hebrew-Judaic Roots and become restored with the Jews of the House of Israel

Academia.edu helps academics follow the latest research.

Find travel tips and discount travel deals. Read trip reviews and plan everything from international travel to local trips with the Independent Traveler.

This is the United Nations portal on Development. Here you will find related information and links on sustainable development and other economic and social issues.

A Web site featuring highlights of the Smithsonian Institution’s scientific research in the fields of anthropology, astrophysics, conservation biology, geology, materials science, paleontology and zoology

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

Arthur Frommer

The Natural Resources Defense Council works to protect wildlife and wild places and to ensure a healthy environment for all life on earth.