[sukosaki]

Excellent points made here. Don't just run out and ask them to sign up, even if it's part of a contest.

I think there is a lot of trial and error in affiliate marketing, but the ones that have done best for me ($400 one post since aug 07) have been regarding a relevant affiliate to the post topic.

Keep it up, it'll all come to you soon enough. That is part of the reason you join as many programs as you can, the more offers to promote the better chance to make some money!