
These links should help to give a grounding in tracing spammers. Reading headers is an essential part of tracking spam, so don't forget to read about it.
Exterminating Spammers Step-by-Step - www.camblab.com/nugget/extermin.htm
Tracking Spam - www.claws-and-paws.com/spam-l/tracking.html
Spam Tracking 101. mirrors: 1 2 3
Stop Spam FAQ - www.qsl.net/spamfaq.html
Dealing with Junk Email - www.jcrdesign.com/junkemaildeal.html
Responding to Spam - db.tidbits.com/article/05032
How to Track a Spammer - www.danbalsam.com/danhatesspam/tracking.html
Deciphering Spam - www.internetprivacyfordummies.com/modules.php?...artid=21
How spam is transmitted - www.rickconner.net/spamweb/spam-transmission.html
Roadmap for analyzing, tracing, and reporting spam e-mail - www.rickconner.net/spamweb/reporting-roadmap.html
Sample spam analyses - www.rickconner.net/spamweb/analysis_samples.html