I can't tell if the affiliate link is hidden or not. Traditionally Amazon affiliate usernames are "username-20" and as you can see in the URL the pattern does e

I can't tell if the affiliate link is hidden or not. Traditionally Amazon affiliate usernames are "username-20" and as you can see in the URL the pattern does exist, only with a strange username: "_0" http://www.amazon.com/exec/obidos/ASIN/0964729237/_0-20 http://www.amazon.com/exec/obidos/ASIN/0964729237/_0-20