- An advanced article on Spring Security regarding namespaces.
- A few pros/cons on when you'd want to use Amazon's EC2, Google's App Engine or maybe RackspaceCloud.
TweetDeck uses GAE (Python) for some parts of their system, e.g sending emails, in combination with EC2.
- An older but still interesting PDF on Scrum and XP experience in a project of 40 people. They experimented for about a year on different team sizes, different sprint lenghts etc.