Rails, Rules (Drools!), and Managing OSS Slides Online!
Slides from the three talks (on Ruby on Rails, an Intro to Rules Engines (using Drools), and managing business risks associated with open source) which I gave at ApacheCon EU are available online from Chariot Solutions now. The page has quite a few -- mine are the top three (most recent) as of my posting this (7/21/2005 and 7/22/2005 respectively).
Hope you find them useful!