Free Social Bookmark Direcktory - Share your bookmarks with your friends
Shadows is a social bookmarking service for discovering, sharing and managing information on the web. Shadows supercharges this information with a "Shadow Page" for any web page — a behind-the-scenes perspective with views, ratings and details from the online community.
Digg is a technology news website that combines social bookmarking, blogging, RSS, and non-hierarchical editorial control. With digg, users submit stories for review, but rather than allowing an editor to decide which stories go on the homepage, the users