Best of this Week Summary 12 April - 18 April 2010

• 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.
  


• John Resig on improving the Javascript in your web app. Video & full transcript, including new features now available in jQuery 1.4. Mentioned are: delegation, live events, html fragments, javascript from CDN, additional header in Ajax calls, custom events, special events, themeability and customizability, i18n, and IE6 support.
  


• 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.