Buildbot is often seen and written about across the web. This is a sampling of the coverage

•  Buildbot: Command, Control & Communication (Part 1)  (Part 2) (Michael Lenaghan)
•  Organizing Software Growth and Distributed Development: The Case of Abinit (Yann Pouillon et al.)
•  Buildbot (Jacob Kaplan-Moss)
•  Continuous integration with Buildbot (Noah Gift)
•  Continuous Integration Testing (Andrew Wilkinson)
•  Mozilla’s Build System (Anamaria Stoica)
•  Buildbot and Intermittent Tests (Jon Watte)
•  FLOSS Weekly on Buildbot (Dustin J. Mitchell)