But Google Hacks, 3E, author Paul Bausch found a hack in the forums to get yourself the API key Google’s just discontinued. If you have a Google account, go here. The page will error out, but you’ll get a key via email. (If you don’t have an account, get one here.) I just tried it myself, and it worked for me.
I’m sure this will be plugged soon, so if you want one of the last remaining and soon-to-be highly coveted API Keys, get it while you can.