Yuliya, thank you so much for the shout out.
JBird, I've been doing affiliate marketing for years, but I've never done a site PRIMARILY for affiliate marketing. My sites have all come about as a means to serve a particular need and the affiliate sales are a bonus. I only promote things I really like, so there's never been a great deal of work on finding keywords that fit a particular statistical marker.
I do find the model interesting, though.
I would give you one word of caution when looking at affiliate marketing resources. Often the info is very skewed toward a product/service being sold. That's not bad, just a bias to be aware of in your search.
If you're looking for an inexpensive site to do the marketing on, give me a holler.
Best wishes,
Alison