Zack Rosen of Chapter 3 talks about Cloud hosting for Drupal with Amazon EC2 as well as:
* the three Get Pantheon Amazon EC2 machine instances including:
o Mercury performance optimized server configurations using Pressflow Drupal
o Vulcan Amazon EC2 machine instance for Continuous Integration using the Hudson Continuous Testing/Integration system
o Aegir Amazon EC2 machine instance
for rapidly deploying multiple Drupal sites using the Aegir hosting system
* Main differences between Amazon EC2 and other hosting options
* Chapter 3’s motivations for releasing these projects
* Drawbacks to Cloud hosting
For more information:
* Amazon Web Services (S3, EC2) group on g.d.o
* Get Pantheon