Bookmark zone

Reddit - Social content site with focus on fun stuff, politics, science; sometimes, anything goes. Witty descriptions are obligatory.
ClipMarks - A service that allows you to save and share “clips” from web pages.
Digg - Social content site that likes technology-related content; especially Google and Apple related. Promoting your own blog - especially too aggressively - on Digg is not a good idea.
Blogmarks - another “clipping” service for saving and sharing links from the web.
Newsvine - Social news site with plenty of options and features
Netscape - Netscape’s social news portal, less oriented towards technology than both Digg and Reddit
Del.icio.us - If you need to share bookmarks or you want people to tell you about websites, Del.icio.us will allow you to do that.