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.

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

Prezi is the zooming presentation editor

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

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 ...

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest quality video in the universe.

MOTHERBOARD.TV is an online video network and community focused on the exploration of the culture of technology, as viewed through the lenses of curated editorial content, community, and dialogue.

TED is a small nonprofit devoted to Ideas Worth Spreading -- through TED.com, our annual conferences, the annual TED Prize and local TEDx events.

Good old Wikipedia, great new look

Academia.edu helps academics follow the latest research.