The server runs almost completely in the Amazon Cloud. It was designd to be a highly-scalable cloud application that specifically used four fo the Amazon Web Services:
Their goal of the application is to help mid-sized companies do a better job of archiving internally generated digital content for storage management and electronic discovery.
I would like to see a case study on this deployment, it looks to be a perfect deployment of web 2.0 application that full embraces Amazon Web Services.