I have started looking at web techs with some more interest of late. Drupal is getting plenty of attention around the place and I like the blog tools and the cool array of capability available for the platform. I would love to find a nice way to get my head around it all quickly.
[Drupal logo via the main site]
Some sites of relevance powered by Drupal:
The New York Observer
I also had a closer look at the cool stuff running on Inhabitat using all the fun Wordpress tools.