Re: [Koha] Koha software and Amazon

So, strictly speaking is not possible to use Amazon.com data in Koha, the principal purpose of Koha isn't driving traffic to Amazon Website.<http://lists.katipo.co.nz/mailman/listinfo/koha>

I think you are confusing the purpose of Koha as a whole with the purpose of its using Amazon content. The content does link back to the Amazon details page. But if you are concerned about legal issues, you could subscribe to a 3rd party provider like syndetics (or others).