Due to the fluid nature of the web, we can't guarantee these links will work past the original posting date.

My 1997 column on Internet advertising.

My 1999 column proclaiming that Internet advertising doesn't work.

How Google makes money.

An interesting paper on how spam works and ways to stop it.

These folks might be called spammers except nobody is complaining. That's because they use personal referrals, which might be one of many techniques to research in an effort to improve spam.