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High Points on the Social Media Landscape

WebMarketCentral

Site Alexa Rank (March 2009) Compete Traffic (February 2009) Compete 1-Year Traffic Change Google Pagerank ZoomInfo 2,702 1,864,047 -6.5% 6 LookupPage 74,220 16,525 N/A 4 Wikis Sites where you can conduct research, create new topic pages based on your expertise, edit existing content pages, and—in the case of Google Knol—rate the contributions of others. Knol may lack Wikipedia's cachet, but it's a much friendlier place.