Something I just learned... I see lots of websites with a feature that encourages visitors to the site to enter their friends contact information to forward them information about the site. And if you as a Webmaster are collecting those names into your auto responder and plan to email those referrals for future promotions, you are spamming those referrals. I guess it's pretty self-explanatory why this is spamming being that the referral never gave you permission to email them in the first place. I was just researching this because I was working on a new site with a similar feature and I was warned not to collect those referral names into a database. Anyhow, maybe you knew that already but figured I'd pass it on.