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

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...

NAM and aidsmap work to change lives by sharing information about HIV and AIDS. We believe independent, clear and accurate information is vital in the fight against HIV and AIDS

Read doctor-produced health and medical information written for you to make informed decisions about your health concerns.

Online Medical Dictionary and glossary with medical definitions

"O Say Can You See?" is a blog produced by the National Museum of American History (NMAH). The blog takes readers behind the scenes at the museum, sharing insights and information about our exhibitions, events, collections, research project...

Infectious AIDS - Have We Been Misled? This is the official HIV/AIDS research from the University of California Berkeley, Department of Molecular and Cell Biology. This contains the written research works of Professor Peter H. Duesberg on the subjec...

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.