I promised at Supernova I would give an update on the integration of Amazon.com (through Amazon.com E-Commerce Web Services) into Second Life: Jeff Barr has the scoop and demonstrates it on the Amazon Web Services Weblog. As expected it was a complete grassroots effort with no official Amazon involvement. Go visit the life2life store now (yes that is second life url, you need the program installed to use this as a locator).
And as Jeff mentions there is some really cool second life style interface innovation: you can talk to store and a search on Amazon will be triggered. Go try it out!