In the New Scientist today,

Snail mail attack could be launched online

I remember LONG ago, when I were a young lad....ok, not that long ago, when waging a junk mail war on someone seemed like a fun practical joke, like calling up the Army and telling them maybe you wanted to enlist, giving off your friend/enemies mailing address and phone number...then subscribing them to all kinds of catalogs. But, with the Internet, you can take practical joking to a new level.

In fact, there are dozens of practical joke sites on the Internet, like The Gag Works, and The Prank Place. There have been lists of Practical Jokes since the dawn of the net, like on alt.shenanigans. The Internet is a great place to merge technology with things that you could only do by hand years ago, and automating things with no morally redeeming value seems to be what drives technology. Some of these are pretty funny, folks, like >the fake lottery tickets...