delicious

Delicious, (means delicious in Spanish) is a service of social bookmarking web. Allows you to add markers that typically were kept in browsers and categorize a labeling system called folksonomies (tags). Not only can store websites, but also allows sharing with other users of del.icio.us and how many have saved a particular link in your bookmarks.
The website address is: http://www.delicious.com/