Coding
xml4h: XML for Humans in Python
xml4h is a library for Python to make working with XML a human-friendly activity.
Visit the xml4h documentation and GitHub pages.
JetS3t
JetS3t is a free, open-source Java toolkit and application suite for Amazon Simple Storage Service (Amazon S3), Amazon CloudFront content delivery network, and Google Storage for Developers
Visit the JetS3t Homepage.
Java XMLBuilder
XML Builder is a utility that creates simple XML documents using relatively sparse Java code.
GitHub project page: java-xmlbuilder.
Python Payflow Pro Client
A Python implementation of PayPal's Payflow Pro payment gateway API.
Google Code project page: python-payflowpro.
Python iContact Client
A Python implementation of the iContact mailout API.
Google Code project page: python-icontact.
Writing
Programming Amazon Web Services: S3, EC2, SQS, FPS, and SimpleDB
An O'Reilly book that demonstrates how developers can take advantage of Amazon Web Services (AWS) to build web-scale applications, using the Simple Storage Service (S3), Elastic Compute Cloud (EC2), Simple Queue Service (SQS), Flexible Payments Service (FPS), and SimpleDB.
Articles about Amazon Web Services
Browser Uploads to S3 using HTML POST Forms
PAWS Marketplace - A Rails Marketplace Application in the Cloud