OK...here's an oldie but a goodie.

Pay-per-lead marketing...

That's where you get paid for every person who merely visits and/or signs up for a particular website or product. I know there are a ton of them in the dating and adult market, and one that I've been participating in lately has been for passion.com.

They have a huge network of dating sites where they'll pay you $1 for every referral. Using Craigslist ads and a little myspace marketing, you can easily drive traffic to these pay-per-lead programs and easily cake it...especially since the offers are free, anyway.

If you want quicker cash paid to you instantly...I recommend checking out 7dollaroffers.com, finding a product, getting your affiliate link and promoting it on craigslist ads. Post about 20-30 ads in different cities and markets for the same product, and any sales get paid instantly to your Paypal account without hesitation. As a matter of fact, your referrals pay YOU directly instead of the product owner...as the product owner is merely trying to build his/her list of prospects that they can advertise to later.