Last month Mark and I gave a presentation in Lille for Ch'ti JUG. The video's are now online:
Drools video of Mark Proctor at Ch'ti JUG.
Mark shows an overview of Drools and in-depth examples of the rule engine.
Drools Planner video of Geoffrey De Smet at Ch'ti JUG.
I show several planning problem use cases (n queens, bin packaging, shift rostering, examination scheduling) and explain the deterministic and meta-heuristic algorithms to tame them.
Here are links to more presentations: