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 fr...

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

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

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

TripAdvisor - Unbiased hotel reviews, photos and travel advice for hotels and vacations - Compare prices with just one click.

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

Rate Your Music is an online community of people who love music. Catalog, rate, tag, and review your music. List and review the concerts you

foursquare

uCoin.net is an International Catalog of World Coins.