Links

Here are some interesting links for you:

Wikipedia Spam

Free Encylopedia about spam e-mails.
http://en.wikipedia.org/wiki/Spam 
http://de.wikipedia.org/wiki/Spam (German)

Spam Laws

This site offers a compilation of laws related to unsolicited bulk and commercial e-mail ("spam").
http://www.spamlaws.com/

SpamAssassin

A powerful Open-Source spam filter. (SpamAssassin is also integrated in Proxmox Mail Gateway) 
http://spamassassin.apache.org/

A Plan for Spam

Article describes a special spam-filtering technique.
http://www.paulgraham.com/spam.html

Spam

This is the official SPAM home page. (About canned meat sold by Hormel)
http://www.spam.com/

Spamusement

Poorly-drawn cartoons inspired by actual spam subject lines!
http://spamusement.com/