The New York Times did an article on Randall Munroe, the mind behind xkcd, a geeky web-comic.

I clipped his best comics, but feel free to explore them further at his site http://xkcd.com.

I also added the talk he did at Authors@Google (see the bottom of this clip).

only one joke involves unix speak...

True, the title comes from the NYT article, and I think they only referenced the 'sudo make me a sandwich' joke.
But I guess it takes a certain amount of geekiness to appreciate most of the humor on xkcd, so the title isn't entirely inept.