Small Web research project

We are a business serving the needs of independent book authors looking to self-publish on amazon. We are looking for someone to research all affiliate programs that sell stuff that interest: book authors, writers, etc.

The first milestone will be to build a spreadsheet of all relevant affiliate program, describe their product, rate how well it fits with our target public. ($200)

A second milestone will be to research existing articles that mention these products. You will find and rate the most interesting content for each affiliate program. ($200)

To show your understanding on this subject, please mention one affiliate program or aggregator that is relevant to my target market (book author).