I recently signed up with a few affiliates and get paid after people click through on my links. I have made about $100 on one and $40 on another! It's not too bad at all, and you get paid for people clicking links to things like Coupons.com, Swagbucks, etc.
Escalate is my BEST one, sign up HERE
Logical Media is another good one, sign up HERE
My Savings Media is another good one, sign up HERE
I signed up for each of these because they all pay differently. Some have the same campaigns, but one will pay more than another or some have ones that the others don't. I try to write up posts about the different campaigns to try to get people to sign up or whatever. :) It's working so far!