Thanks to Andrew Pollack for this one:
This session, delivered by Mikkel Heisterberg — was tailor made for me. I’ve done no plug in development because despite knowing Java and knowing Notes, when it came to plug-in development I didn’t know where to start or what was really feasible. I know the information is out there, but it takes time to go find it and figure it all out. Mikkel put together a session that was absolutely everything I needed to know to start building plug-ins immediately — and not a single thing I didn’t need. This was all signal, no noise and perfectly leveled for someone in my position. Another developer I talked to on the way out called it “three months of head banging frustration skipped over as a result of reading a dozen slides.”