Does anybody have a good Ruby script for finding books (or other products) on Amazon using their API?
I've been using Amazon/ECS with great success. One important point is that it's not GPLed (whereas Ruby/AWS seems to be), so if it's important in your case, take care.
Here is a sample:
require 'amazon/ecs'
# default options; will be camelized and converted
# to REST request parameters.
Amazon::Ecs.options = {:aWS_access_key_id => [your access key]}
res = Amazon::Ecs.item_search('ruby')
You may also want to have a look at some example of integration with the Mephisto blogging system.
cheers!