This is my personal website. I'm listing here because it is a showcase for many of the technologies I deploy elsewhere, including integration with Facebook, Twitter, and Youtube.
This is a Drupal multisite installation, which also hosts other sites, including 69thnewyork.com, Tenuki Design, and this site. A multisite installation lets you host multiple websites with the same software on the same server. This gives you a significant reduction in maintenance time, as well as making it much faster to deploy new sites.