I'm a big fan of testing your ideas on Ebay. This is great because you don't need a website, you have access to millions of buyers, and you can test for a couple of bucks. My philosophy is if you can't sell it on Ebay you can't sell it anywhere. Do yourself a favor and go to Terrance's site
http://www.sellbooksandvideos.com and get on his mailing list for his newsletter. The beauty about this is that he actually gives you examples of what people are selling on Ebay as far as information products. People are making thousands just selling info on Ebay each month. You won't believe what people are selling on Ebay as far as info. I love the dvd showing kids how to tie their shoes. Man, why didn't I think of that!