The popular IBM developerWorks site has started a new series entitled "Using open source software to design, develop, and deploy a collaborative Web site". After reviewing numerous open source packages such as Typo3, Mambo, and the ever-hyped Ruby on Rails, they "decided to use Drupal", remarking that it "provided the right combination of framework and flexibility . . . to get the job done". They also echo many of our user's concerns about potential complexity: "There is still an apparent learning curve to the "Drupal Way" of creating sites, but significantly less compared with other CMSs. The ability to use PHP to move freely between the business logic layer and the presentation layer (using the PHP template engine) was also very appealing." Read more over at IBM's developerWorks.