Here are the top 20 largest social bookmarking sites ranked by a combination of Compete and Quantcast data. For each site, we show unique U.S. monthly visitor data as well as respective rank.
Pligg is Web 2.0 Content Management System (CMS) unlike any other existing CMS. Pligg's Web 2.0 user interface gives your visitors a reason to come back to your site by making them decide on the site's content and giving them the chance to social network.
TechMeme (formerly tech.memeorandum) is a site that bloggers and others check frequently for news. It is an entirely automated web service that looks at what bloggers are talking about, linking to,decides what is news sistss Memeorandum WeSmirch BallBug
So, if Del.icio.us stands for Bookmarking, Sharing and Discovery, and Digg stands for Buzz, Partying and Traffic, which service will have a longterm appeal?
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