I have been using and mastering PPC engines for about 4 years now since the beginning. I own one, and always liked the concept, but I have to tell you with the major increase in cost per click and more noticeably the quality which is at least 5 times worse than it was just 1 year ago. I am finding myself getting away from almost every ppc engine out there, they can't convert worth a shit, and for sure are hardly even worth 2 cents per click anymore. I have been working with ppc engines full time for 3-4 years and I know them well, and I"ll find my twists to stay alive on the last few, but these ppc engines are making a few big mistakes with the direction they are headed which I can't get into all right now, but it's sad that this area has gone downhill, I've already seen many people take their listings off the ppc engines or put the bids way way down.
good luck to all in the future
