Common Craft videos.

I really like the work that the two guys at Common Craft are doing. Through the use of short, entertaining videos, they make really complex subjects easily understandable. All of the videos use a white board and paper style of production, and copies are available to share online. For commercial purposes you can license hi-res versions, or even commission Common Craft to make a bespoke video. I like their philosophy of keeping the company small and the quality high, and am looking forward to future productions.