Portland State University using Drupal We're on a roll with universities using Drupal! Portland State University (PSU), with more than 24,000 students, is using Drupal for their main website at http://pdx.edu. — Dries Buytaert Dries Buytaert is a Boston-based Open Source advocate and technology executive. More than 10,000 people are subscribed to his blog. Sign up to have new posts emailed to you or subscribe using RSS.