HEATKEYS

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 ...

For iPhone developers who love their apps, App Annie keeps tabs on your apps, making it easy to track sales, rankings, and reviews from around the world.

italki is a language learning social network that connects students and language teachers. You can find language exchange partners, practice speaking a foreign language, ask questions, find free online language resources, and get help from an intern...

search through socialized profiles of companies

The source for music information. Read artist biographies and album reviews. Find the best of new and upcoming releases. Stay in the loop with our newsletter. From rap to country and electronic to classical, we are the source for information about th...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the world, securely and privately show content to your friends and family, or blog the photos and videos you...

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

Diigo is a powerful research tool and a knowledge-sharing community

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