In the beginning, pay-per-click (PPC) advertising made it affordable for small businesses to advertise online. Life was good.
But online advertising giveth and online advertising taketh away; the overall percentage of click fraud during 2006 was 14%, the industry's highest percentage of click fraud to date says ClickForensics. According to the company, click fraud from affiliate sites is even higher, averaging 19%.
Caveat emptor.
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