As I don’t use FireFox as much as I used to, my whatmon plugin has become
less useful to me. (I’m pleased, however, that it is being put to good use by
many people.) Instead, I’ve switched to GeekTool, a marvelous program
which will display the content of a plain text file, the output of a shell
command, or an image pulled from a URL onto my Mac’s desktop.
If you want to use GeekTool and need a bit of
inspiration, look here for plenty of sexy ideas.