Real-time Spam Map
Found on Slashdot on Wednesday, 14 September 2005

Mailinator, the free, temporary email service gets a lot of spam (over a million emails a day). And with another cool application of Google maps, the site now shows a Spam Map indicating what sites are spamming mailinator in (nearly) real time. It's oddly addictive to poke around and see where the spam is actually coming from.
Wow, that's really neat; just sit there and see where the spam comes from. It gives a nice overview.