The significance of social networking sites

Who knows social networking sites????
How many people cares?
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Web	Personalized Results 1 - 10 of about 122,000,000 for social networking. (0.15 seconds)"

Web Personalized Results 1 - 10 of about 14,500,000 for friendster. (0.18 seconds)
Web Results 1 - 10 of about 11,600,000 for chinaren. (0.15 seconds)

Web	Personalized Results 1 - 10 of about 4,840,000 for cyworld. (0.17 seconds)

Web	Results 1 - 10 of about 42,600,000 for facebook. (0.25 seconds)

Web	Personalized Results 1 - 10 of about 209,000,000 for qq [definition]. (0.18 seconds)

Web	Results 1 - 10 of about 4,520,000 for blog sina. (0.20 seconds)

Web	Results 1 - 10 of about 209,000,000 for myspace. (0.19 seconds)