I always knew that amazon.com has an online presence in various international places... I've had commissions for selling the kindle versions from amazon.co.uk, but could (feasibly) also see them from amazon.in (India), amazon.de (Germany), amazon.fr (France), amazon.es (Spain), amazon.it (Italy), amazon.co.jp (Japan), amazon.com.br (Brazil), and amazon.ca (Canada).
I was curious if the paperbacks were showing up on international (online) bookshelves... So I went searching. Here's where I found at least one of my books...
In Australia (see above):
angusrobertson.com.au
bookworld.com.au
coop.com.au
In Canada:
mcnallyrobinson.com
In Finland (see above):
suomalainen.com
In South Africa (see above):
exclus1ves.co.za
In the UK:
bookshop.blackwell.co.uk
waterstones.com
foyles.co.uk (see above)
And in the good old USA:
amazon.com
barnesandnoble.com
booksamillion.com
hpbmarketplace.com
powells.com
schulerbooks.com
It's fun to see the book show up in so many interesting places and to see prices in such diverse currencies.
It helps me the most, of course, to sell straight from vanilla-source amazon.com.