Is there a website out there, where I can type in the keywords, and it will tell me what that product is going for. Like for example, lets just say I type in Harry Potter Book, just Harry Potter Book. Can it tell me what the average is of all the harry potter books?
There is on Ebay. You have to get an account then pay a monthly fee for their market research tools and you can see the averages for every keyword on ebay.