Maybe this is old news to some, but I just saw a cool way to fight back
against spammers. Its a web page script that generates 100 bogus email
addresses (different every time) for spambots to choke on. It has recursive
links to itself so the bots will load up on phony addresses and require more
database cleaning. Easy to do with your own script or just post a link to
theirs:

http://www.hostedscripts.com/scripts/antispam.html

If lots of webmasters did this, spambots might become so inefficient that
spam would no longer be economically practical.
--Phil M.