HEATKEYS

AbeBooks is your source for Used, New, Rare and Out of print books. Find classic collectibles, rare signed editions, used textbooks, and inexpensive bestsellers from independent booksellers worldwide.

Prezi is the zooming presentation editor

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd

Lessonpaths allows you to create, share and explore learning playlists made by people like you

FQXi catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality, but unlikely to be supported by conventional fu...

English-Spanish Translation Software, Bilingual English-Spanish Dictionaries, Medical Dictionary, Business & Finance Dictionary, Law Dictionary, Information Technology Dictionary, with translations, synonyms, definitions, usage examples, quips, q...