According to a new study, 65 percent of American adult Internet users have interacted on a social media site like Facebook, Custom Vikings Jersey, Google+, or LinkedIn, supporting the often cited importance of social media marketing.The social networking report from the Pew Internet & American Life Project has been asking adult Internet users in the United States about social media site visits since 2005 when just 8 percent of Internet users 18-years-old or older had visited one of the sites,
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