Carrying on from the previous post, when you publish through Amazon and pick expanded distribution, your books end up being sold anywhere at anytime.
What I have found very weird, is that my books are being sold on eBay.
Not second hand, but brand new ones all the way from Amazon. You buy it, they send the order. The eBay sellers would make a fair bit of money doing this too since they have priced them higher than the set US price of $19.95.