Web 2.0 Social Tagging Sites, Part 1: Alexa Rankings
WebMarketCentral
APRIL 29, 2007
Here are the rankings for 42 Web 2.0 Although Alexa is notorious for its lack of precision, as documented by GigaOM , SEO Book , BloggingStocks and others, it's still useful as a rough guide to website popularity. Robin Good actually places the number at as many as 50,000, which encompasses 29 of these Web 2.0
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