I use second teir PPC

I have used google and yahoo in the past, but for a college student far from home and who rarely knows were his netxt meal is comming from, I have migrated towards the second teir ppc market. The numbers aren't there but I find that the quality is good and some of the most searched keywords are still really cheap.

When I test my ads I still use the same formula I used on google and Yahoo circa 2001 and when I launch a new venture I alway start on google. My point is a good mix always gives me a better ROI and thats what I need, not nessisarily the most trafic. To quote biggie smalls: "if it don't make dollars, it don't make sense"

Is anyone else using second teir PPC engines? Have you had any sucess?

Yep, I have used probably a dozen 2-tier engines. They sometimes work, sometimes don't depending on the partners they are using at that time. Some of them are Miva, Looksmart, Enhance, and GoClick.