HEATKEYS

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

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.

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

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...

Search engine that finds the best buys from among 150 million new, used, rare, and out-of-print books for sale. Includes textbooks and international titles.

List of companies located anywhere in the world in any industry

Prezi is the zooming presentation editor

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.

Offers bookmark synchronization, search enhancement and web discovery based on sites bookmarked by users.

Helps groups of people with shared interests plan meetings and form offline clubs in local communities around the world

Docstoc is a community for people to find and share professional documents. Find free legal documents and free business documents.

IDEAS is a central index of economics and finance research, including working papers, articles and software code