I tried an offer for a dropshipping company. I didn't do jack shit to promote it. I just made one wordpresss blog post about getting into drop shipping, and recommended the company as a good place to get started, since they have a free trial.
I think the payout was $5 for the lead, and another $70 if they stayed on board with the service.
I just wrote one article, submitted it to ezines, and one blog post. Less than a half hours work, and so far I've got 3 signups.
I plan on going back to the campaign, building a legitimate landing site, and putting some more promotion behind it, because I think it could be really good, especially if I can get users to sign up for some of the pay per sale offers on the site.