Depends on your product, I found that almost all of my traffic was from paid surfers, if you have a hot product maybe you can catch their eye. Overture/Yahoo is much less expensive in the long run if you take your time and prepare your campaign correctly. Jack
Yes, i am using them right now, So far this month i have made $90. Last month i made $160. They do pay, i recived a check for december on Feb 1st. They are pretty loyal, and i really like their service. .
Are you talking about buying sponsored ads or displaying the contextual ads on your site? I used the Kanoodle PPC search engine a while ago because of the free money when you set-up an account. It was $25 I think, but after a while I just let the funds dry up and focused on Google and Yahoo since they had more traffic.