HEATKEYS

The authoritative Collins dictionaries now available online. Search amongst hundreds of thousands of words and expressions in Spanish, French, German, Italian, Chinese, Portuguese, Russian and synonyms dictionaries.

Facebook helps you connect and share with the people in your life.

International Mathematical Union (IMU)

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

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

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...

Translation service and translation jobs for freelance translators and translation agencies.

Prezi is the zooming presentation editor

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

Higher education search engine and directory of world universities and colleges. 4icu.org includes 10,000 college and university reviews and web rankings in 200 countries.