Amazon Web Services:

• boto – Project Hosting on Google Code
• The Codebelay Blog » How to Load Balance and Auto Scale with Amazon’s EC2
• Getting Good IO from Amazon’s EBS

Python Libraries:

• libcloud python library – a unified interface cloud server providers
• Parallel Python – Home

GlusterFS:

• Distributed Replicated Storage Across Four Storage Nodes With GlusterFS On Debian Lenny | HowtoForge – Linux Howtos and Tutorials
• Using Disco with a distributed filesystem — Disco v0.2.2 documentation