// url to look up a product ASIN B0091Y07Y0, should be all on one line

http://ecs.amazonaws.com/onca/xml
?AWSAccessKeyId=XXXXXXXXXXXXXXXXXXXXXX <-- your id goes here.
&AssociateTag=canadianmindprod
&ItemId=B0091Y07Y0
&Operation=ItemLookup
&ResponseGroup=OfferSummary
&Service=AWSECommerceService
&Timestamp=2013-02-02T08%3A06%3A30.000Z
&Version=2011-08-01
&Signature=v1KhiMEQXc2l9FTRD9oFgHMsdQ23KnhZoz26qqklwSc%3D  <-- HMAC digitally signed with your secret key