Some programs undervalue links more than others. I am avtualy quite cool with Amazon's system, but recently got burned really, really badly by eBay. They don't

Some programs undervalue links more than others. I am avtualy quite cool with Amazon's system, but recently got burned really, really badly by eBay. They don't allow you to post affiliate links on Twitter, but we ran Twitter posts about the NIN eBay auctions that drove hundreds of thousands of viewers to eBay. I was lined up to make nearly $2k in commission when I got a notice that all my commissions were canceled because we used Twitter. I don't understand why that means I shouldn't earn commission for the traffic I drove. Additionally, I am banned from ever joining again. Unfortunately the revocation and ban happened while I was (and still am) on vacation to Egypt, so I don't really have time to deal with it. Yes, affiliate programs take advantage of you. You have to decide how comfortable you are with that, and at what level. It's still better than no affiliation at all.