From Adaptive Path, LLC, comes Measure Map:

Measure Map helps you understand what people do at your blog, and what influence you are having on the world.

• Easily navigate the numbers that matter
• Track links to see who sends you traffic
• Find out what people do at your site
• Setup is a breeze -- it only takes a minute

It's in beta right now and via invitation only though so you'll need to sign up. There's some buzz about the web application, but not much in the way of information that I could easily find.