One of the most impressive and interesting changes in WP 2.5 is the built-in gallery. A page on the Codex gives some insight on how to use it: Using the Gallery shortcode.
Gallery of Cool WordPress Sites
custom wp is a gallery of websites that are powered by WordPress with a twist. Unique designs, interesting usages, cool examples of what people would rightfully call "WordPress as a CMS" if WordPress was not already a CMS. While you're at it, have a look a their WordPress People page, tracking the activity of 50 peeps that blog mostly about…