(Unfortunately the comic that originally appeared above has gone away - it showed the Earth being destroyed by tsunamis and other catastrophes - two astronauts on the Moon could see this happening and one says something like, "See, I told you we should have brought some boardgames along." It was probably called "Boardgames" and maybe it's in the new book.)
Another on-line cartoon I discovered over the weekend is the Perry Bible Fellowship. It's not very biblical, except occasionally in a certain sense. Nicholas Gurewitch has a bizarre way of looking at things that reminds me a bit of Gary Larson's The Far Side, but different. Some very funny stuff, even if his physics is a little weak.