HEATKEYS

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

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...

Twitter is without a doubt the best way to share and discover what is happening right now.

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.

YouTube is a place to discover, watch, upload and share videos.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

News, Sport, Kochen & Allerlei

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.

Trade books for free with our online book swap. We are not just Paperbacks! Find a huge selection of hardbacks, audio books, romance novels and more.

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

Consestimate is an open financial estimates platform, which enables investors and analysts to share forecasts with peers and find the fundamental value of public companies.