maybe of topic because it's not open source, but this the latest Amazon concept. We may find some interesting angles here if it comes to explaining what ACS can be used for to newbies: Amazon.com" wants to see Web services work. We believe they are important to the future of the Internet. To help stimulate Web service innovation, we now offer software developers the opportunity to integrate Amazon.com features and content directly into other web sites using either SOAP or XML over HTTP. Partner with the leader in e-commerce and join the Web services revolution today! Participation is Easy and Free