I am a little biased about this area because I own a pay per click search engine. However, I have to tell you to be very careful in which one your choose. In fact I would highly recommend only going with some of the ones that have been around a long time. This will prevent you from pushing a lot of traffic to a search engine that is not going to make payment.
Good Luck,
Troy
Discover the secret weapon of the internet marketing heavy hitters that will deliver an amazing boost to your affiliate program follow-ups and sales. Brand new report reveals it all. Click here to get it immediately before your competition does.
http://www.paypertext.net