Drupal, licensing and the GPL June 30th, 2008
If you’re about to start programming under the GPL, and you want to read just one article about it, then: don’t read this; read the Drupal licensing FAQ instead.
Postcode Anywhere and MailBuild integration with Drupal May 22nd, 2008
Integrate SOAP-y web services with Drupal at a low level using PAMB.