By David Jackson, USA TODAY
President Obama's Twitter account has 18.8 million followers -- but more than half of them really don't exist, according to reports.
A new Web tool has determined that 70% of Obama's crowd includes "fake followers," The New York Times reports in a story about how Twitter followers can be purchased.
"The practice has become so widespread that StatusPeople, a social media management company in London, released a Web tool last month called the Fake Follower Check that it says can ascertain how many fake followers you and your friends have," the Times reports.
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