Fighting SPAM

these are some links I have found to sights that look to fight spam...

The list

Neil Gunton's Spambot Trap
A study of how spammers get your address
The Robocop Project
How to Defeat Bad Web Robots With Apache
Email (address) Encryptor using a ajvascript program to obscure it
Email (address) Encryptor using HTML encoding techniques
Deception Toolkit