It's something you'll have to track Are they getting the clicks that you had hoped for, compared to the traffic you're currently receiving? I think custom banner ads to specific amazon products would be more effective, but it's something you'll have to test. I just think that the "get widget" feature is a turn off (my own opinion of course).
Ensure that you're selecting specific brands. I haven't done amazing affiliate marketing for quite a few years but you certainly don't want to be targeting these:
- Also... take a look at several competitors and see whether they have any ad placements. They have most likely done testing on these and you can test that yourself.