CPA marketing is a buzz right now and there is good reason for it.  The conversion rates for CPA offers are much higher than with any affiliate marketing or cost per sale out there.  With CPA (cost per action), rather than getting paid for making a sale, you get paid merely for generating a lead for a company.   Sometimes this lead simply needs to fill in an email address and zip code, but most of the big paying offers are for free trials where the lead has to fill in billing information as ...