1) Whatis.com: Spam
2) May 2004 Information Security magazine: Stuffing spam
3) Featured Topic: Securing e-mail
4) Virus Prevention Tip: Don't get caught in the spam and malware web
5) If you're looking for a specific e-mail filtering product, visit our Product & Vendor Buyer's guide.
6) Information Architect: Throwing eggs at spammers
This was first published in May 2004