social networking audience is growing rapidly

The social networking audience is growing rapidly. In 2008, 79.5 million people, or 41% of the US Internet user population, visited social network sites at least once a month, an 11% increase from 2007. By 2013, an estimated 52% of Internet users will be regular social network visitors. The steady stream of updates and news will become a weekly or even daily habit for many people. That stickiness is good news for social networks, which are still struggling to develop workable ad models.

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For additional information on the above chart, see Endnote 101298 | 101297 | 101290 | 101296| 101295 | 101293 | 101294 in the Endnotes section.