HEATKEYS

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

Footnotes to Plato

An index of current online research in Philosophy. Also contains bibliographies, discussion forums, and advanced research tools for researchers.

Booksamillion.com offers better prices on the books you want. Millionaire

The National Academy of Sciences (NAS) is an honorific society of distinguished scholars engaged in scientific and engineering research, dedicated to the furtherance of science and technology and to their use for the general welfare.

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...

Find what you want in a library near you with WorldCat, a global catalog of library collections.

Save up to 90% off Textbooks plus Fast Free Shipping. Browse the largest selection of new and used textbooks online, rent textbooks or sell your college textbooks for cash today.

Choose from more than 100 million new & used books, used textbooks, and rare, out-of-print books from over 8,000 independent book stores around the world.

GetTextbooks.com compares new & used textbook prices from hundreds of online bookstores to find the cheapest textbook prices every time.