I absolutely, positively, know I’ve written about this and I would bet my life savings that I posted it, but alas I cannot find it anywhere.
Every-so-slightly delayed (months later!), here’s what happened when Randall Munroe (of xkcd fame) was invited to Google – he also gave an Authors@Google talk.
More Googleplex videos here, including the excellent Tech Talks that I can’t get enough of.