Drupal

Catch this great interview by Noel Noneck with Dries Buytaert...

There are many content management systems available, I just happen to think Drupal is one of the grooviest and I'm not alone! It's estimated there's in excess of 50,000 websites currently using Drupal and the number is growing. It's little wonder really when you've got a feature rich, open source web framework, with a well established and growing worldwide community that's been in existence since 2001.