Yeh..Amazon pay an affiliate fee, which is exchange for having the store and therefore advertising and selling their stuff!
For some reason the amount varies, and its been between 4-5% of a sale that Banda gets...we have £2.50 ish as of yesterday, which isn't much I know, but it all adds up to pay for the chat room etc!
So long as you click on the link and go through that way it will credit banda!
I have added most categories, and when I get a chance I'll add them all so you can buy pretty much anything from amazon through it
The Mothercare & Kiddicare work in the same way - except they don't have a shop thing, they just have the adverts on the side (or at least kiddicare will when I add it!)