I want to create an index of products from different sites for customers to review. I'm totally new to IM, SEO and need some guidance. I'm creating a WordPress site where I want to gather and index a product from multiple sites and make a catalog users can come to and review the products. My initial estimate is about 10 different sites. Eventually I was thinking of trying to monetize the traffic by affiliate programs that sell the product. Problem I see would be any trademark infringements or not being able to be approved as an affiliate because I got my index by using their site to get product information for the catalog. I was thinking about using some kind of bot to gather the information. Any thoughts or suggestion would be appreciated.