Ad Peeps Hosted Solution utilizes Amazon S3 – at no cost to
you, to provide redundancy in serving your uploaded banner
advertisements as well as a failover provider in the event
of an unexpected hardware failure at our data center.
In the event of a failure, our entire database will switch
to a backup copy on a completely different web host.
Meanwhile, your ads will continue running using the Amazon
S3 service.
Amazon S3 provides a highly durable storage infrastructure
designed for mission-critical and primary data storage.
Objects are redundantly stored on multiple devices across
multiple facilities in an Amazon S3 Region.
Read more at http://www.adpeeps.com/as3.pdf
