HEATKEYS

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

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

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...

Multilingual pronunciation dictionaries. Pronunciation guide to learn how to pronounce correctly with multilingual talking dictionary.

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.

Biblio brings together thousands of independent booksellers worldwide to offer you over 50 million used, rare, out-of-print, signed and first edition books and textbooks. Searching is done by author, title, keyword, or isbn number. Search Biblio for ...

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.

Readcube is a free, simple, academic software and reference manager for researchers. Read Cube helps researchers organize, annotate and stay on top of new research literature.