The 2006 NASA PM Challenge is a conference on the PM processes for complex projects.
Update...
Here's another site from within the PM Challenge
Center for Program/Project Management Research (CPMR). Nancy Leveson is a contributor to this site. She was a professor at UC Irvine while I was the development manager for our fault tolerant process control computer long ago in a galaxy far away. Nancy provided many suggestions on how to improve the safety and operability of our fledgling machine.