Amazon-Links should state country like Wikipedia links do.

Reasoning:
The same ASIN presents different data, depending on the country (top level domain). Thus this is relevant information which should be presented to the user.

Examples:

• http://www.amazon.com/gp/product/B00008O89L has title "Soul of Tango - G.H." and "Import"
• http://www.amazon.co.uk/gp/product/B00008O89L has title "The Soul of Tango: Greatest Hits"