One day I started reading "Are you part of the Post-Agile Movement?" post by David Anderson. Which lead me to "Agility is not the point". And then to "Agile Software Development vs. Agile Project Management". Which in turn offers a whole bunch of other quite interesting links. You see, with blogs hypertext works just great. Once started you are almost certain to enjoy a never ending journey through the Web.
Speaking of Agile, have you seen this interview with David Anderson? Must see!