Why "spamming" will harm your marketing
efforts
Why spam can't
possibly work
The
Evils of Spam
How do I fix my open
relay?
How to
Advertise Responsibly Using E-Mail and Newsgroups - OR - How NOT to
$$$ MAKE ENEMIES FAST!!! $$$
"Permission Marketing" by
Seth Godin appears to be an excellent resource on how to
responsibly and ethically market your company.
Another
look at responsible, ethical email marketing
This site maintained by
John Oliver