yeah, I've been doing this stuff day and night for so long I think the geek speak gets a little out of hand. Thanks for the wake up call...
PPC - means pay per click. It's like advertising in Google Adwords where your ads show up in the sponsored section of their results.
CPA -means Cost Per Action or Cost per Acquisition. Basically you get paid when someone takes an action. Whether it be sign up for an offer or make a purchase.
URL - You know what good ole Url means
