If you haven't checked it out already, you should definitely pop over to Google, where the latest doodle pays tribute to Douglas Adams' 61st birthday — with some pretty neat animations. You can definitely kill a lot of time pushing all the buttons on the Google version of the Hitchhiker's Guide to the Galaxy and seeing what pops up. There's an awful lot. And best of all: They've included the correct version of Marvin the Paranoid Android. [Google]