High Points on the Social Media Landscape
WebMarketCentral
MARCH 10, 2009
Wikipedia is the most difficult to edit due to the tight control maintained by the site's primary editors and their hostility to any content that can be construed, however remotely, as promotional. Knol may lack Wikipedia's cachet, but it's a much friendlier place. 9 Knol N/A 386,772 +22,303.6% 7 Freebase 22,726 206,489 +1,132.2%
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