Varnish using Drupal
We all know that Drupal can work with Varnish, a HTTP accelerator that caches pages in virtual memory. Well, now Varnish uses Drupal too! Varnish Software, the company behind Varnish, just relaunched its site using Pressflow, a Drupal distribution with performance and scalability improvements. The site was built by Kodamera.
— Dries Buytaert