Stephen Fry is great (if you know who he is, you will agree. If you have no clue who he is, trust me, he's great).
Today's visual came across my twitter stream this AM (sorry, wish I remembered who tweeted it out) and I thought it was great.
That's it... although I did think that some intrepid student could do something similar using Prezi.
BTW, the tweet referenced this page. I can at least give that some credit.