Kevin B Hawkins
EBizMBA ranked the 15 most popular/largest Web 2.0 Web sites as of April 2010. To compile the list, they ranked according to a combination of Inbound Links, Google Page Rank, Alexa Rank, and U.S. traffic data from Compete and Quantcast. It provides a great overview of the top sites where people are congregating and engaging online.
1. YouTube.com
2. Wikipedia.org
3. Craigslist.org
4. Twitter
5. photobucket.com
6....