Honestly, all the hype over pay-per-call often makes me shake my head. Yes, it can be a simple way for people without web sites to get search-targeted traffic. But people who say they'd prefer a phone call rather than a web site visit because they can track and act on the call? Then just run an ad to a page with your phone number! That's cheaper than doing pay-per-call, and you can still get the call. Pay Per Call vs. Call Tracking: Walk Before You Run from Justin Sanger at ClickZ looks at this "walk before you run" approach...
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