I recently did a presentation at an event called Bar Camp Melbourne (there is Bar Camps all over the world, it's a pretty cool event and you should check out if there is one happening near you) about microcontrollers, and I got someone to record the presentation for me. The video isn't fantastic, but I'd thought you guys might like to watch it. It goes for 34 minutes roughly but that's because the camera ran out of space sadly (I stole the camera's normal SD card for my Raspberry Pi and gave it a 2GB card), but the presentation itself was covered in full, just not the Q&A session.
If you're wanting to look over the slides, they're in the youtube description. Enjoy!