you can use adsense on the home but on product pages you can not use. i think you pages does not show any content on product pages. if the is no content on a page, you are not allowed to put adsense on that page
It's only an aff shop for Amazon. Yes it's allowed as long as those Chitika ads aren't contextual i.e. you setthe keywords yourself.
I hope can get double income from amazone and adsense. By the way thanks i want repair erorr in my site Thanks for advice now i know adsense, chitika and amazone can put in same page.