The Content Management System (CMS) that Altamente uses has won the best of the year in Open Source Content Management Systems.
I have used Drupal for years. It has a steep learning curve, but its tight security model and object oriented codebase keep everyone happy.
We used Drupal in conjunction with a handful of other software just up until mid 2006, when we switched completely to Drupal and Wordpress. Drupal was solving more and more problems every day, and it became apparent that the need for multiple platforms was dwindling. I was counting the days when I could support one excellent platform upon which to build all the sites and apps. Drupal has become that for Altamente. I'm glad to see that Drupal has won an award for the best Open Source CMS for 2007.