Several of my talks are now on YouTube, and I've archived them on this playlist. Some highlights include:
I sometimes also upload videos of tools we've created (or that I like).
Some of my older talks may still also be on-line, tough the Web is increasingly forgetting them:
I also did an interview with Erik Meijer (2009) for MSDN's Channel 9. We talked about types for JavaScript, event-driven reactivity, Flapjax, and programming environments on the Web. Totally uncut. So raw it bleeds. Sort of.