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"If you're a small business looking to reach a customers online or boost website traffic and sales, you need to learn about Google AdWords. Simply put, Google AdsWords is a form of pay-per-click ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2011/05/12/a-beginners-guide-to-buying-google-adwords/?_escaped_fragment_=ubLDv>