From the website:

Thoof is a website that offers interesting news articles, websites, videos, photographs, and other links from around the web. Everything on the site is posted by Thoof readers, and can also be improved and edited by those same readers. What makes Thoof unique is a sophisticated algorithm which discovers a reader's interests and tailors the stories to each reader's individual tastes. Every Thoof reader will see a personalized page with stories he or she will find interesting. All that you, as a reader, have to do is simply read what you like, and Thoof takes care of the rest!

Currently hosting over 25,000 registered members.