Anti-spam resources
Find statistics on the problem, some organizations promoting responsible use of email by marketers and related articles.
Related categories:
Spam statistics
TrustedSource Portal
A collection of constantly-updated charts and maps about spam; where it comes from and through which enslaved computers.
Spamhaus statistics
Data on the countries, networks and individuals responsible for the most spam.
Postini Stat Track
Real-time info on the prevalence of spam and viruses as a proportion of all email.
MessageLabs
Statistics on virus, phishing and spam levels. Check out the press releases for formal status reports.
SpamCop.net Trends
Various reports based on submited spam complaints, including spam sources and those websites commonly promoted through spam
Relevant organisations
CAUCE
Coalition Against Unsolicited Commercial Email. Advocates for a legislative solution to the spam problem.
ESPC
Email Sender and Provider Coalition. Works towards solutions that hurt spam, but allow legitimate email marketing to continue. Has advice for marketers on permission practices and similar.
The DMA
The Direct Marketing Association was a little ambivalent on the topic a while back but now has a more active anti-spam stance.
IAB
The Interactive Advertising Bureau encourages email marketing best practices to protect the distinction between spam and legitimate commercial email.
More links
Spam is the problem, you're the solution
Blog post explaining why email marketers should support blacklists and anti-spam legislation as much as possible.
Spammer tricks
A comprehensive overview of the different ways spammers use to get their messages out and through all the traps and filters we set for them.
Spam protection feature
Extensive article detailing the various approaches you can take to protecting inboxes from spam at a user and enterprise level.
Spam Links
Hundreds of links on all aspects of spam, including a big section covering legitimate email marketing.