Spam Complaint -

Tools

Project Honey Pot
Free software for web admins used by a web server to create new addresses on ever page request. Every email is tagged with the date/time and IP address of the browser (or web bot) that requested the page. Honeypot can then receive and flag potential SPAM labeling the requesting IP as a "harvester."
SPAMHAUS tracks the Internet's worst spammers.
Spamato SPAM Filter

Specific complaint about unsolicited commercial e-mail (spam), pornography, false or mis-leading routing or subject information
http://ftc.gov/spam
SPAM@UCE.GOV
This is a large database of spam. If I do not know the person or organization sending the email, I send a copy to the the FTC. In the event that (for example) the message has falsified headers, the report will assist in any investigation.