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 fr...

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

foursquare

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

Το Pinterest είναι ένα οπτικό εργαλείο ανακάλυψης που μπορείτε να χρησιμοποιείτε για να βρίσκετε ιδέες για όλες τις εργασίες και τα ενδιαφέροντά σας.

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

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...