Good Pay-Per-Click or Pay-Per-Signup Programs?

[ellisgolf]

I have been trying to do some research on these programs that pay you for every visitor you send to the site or for every visitor that signs up for an advertisers program. I am currently running a contest website that requires visitors who enter to signup for one of my advertiser's programs. I am currently getting $0.40 per signup, but I have absolutely no way to track which visitors actually signup for the program. So what is happening is people are registering for the contest and skipping the signup for the advertiser stage.

I was wondering if anyone knows of good "pay-per-click" or "pay-per-signup" advertisers that don't mind having their material on a site such as mine. I know that some advertisers don't like the idea of having people "required" to signup for their program in return for something. I haven't found much on the internet yet, so I'm appealing to the wonderful minds of those here on the forum. Please help!