What is the difference between PPC and CPC? What is the role of Google in these?
PPC = pay per click
CPC = cost per click
PPC generally refers to the overall industry of paying for traffic.
CPC I refer to as a measurement of how much a click costs.
So different IMO.
PPC is going to the theater.
CPC is finding out that each picture costs a different amount and you need to pick the one that gives you the bets value for your money.
That ought to cover it