Most of my visitors are from either the UK, US or Japan, so I'd like a nice plugin to present a book from the appropriate Amazon for the visitor. It should also be able to support the case for titles that are available only in Japan but the visitor is from the US, for example. I looked with Google, and saw WP-Amazon, but it seems to be rather broken.
As for WordPress plugins supporting Amazon Japan, there are some good ones... http://wppluginsj.sourceforge.jp/wp-tmkm-amazon/ http://wppluginsj.sourceforge.jp/amazonlink/ http://note.openvista.jp/2007/amazon-linkage-plugin/ I think only these types of common plugins are available now.. Regards