I dropped an email to the Google Adsense support team regarding displaying adsense ads on a site which contained content about illicit drugs addiction and abuse. If you take a look at the adsense policies, it's very vague regarding this topic. Specifically, it says it doesn't permit: 1. Illicit drugs and drug paraphernalia 2. Sales or promotion of prescription drugs Part of the email response I got from them was the following: So basically, if you are NOT promoting the use of illicit drugs, it should be fine displaying ads on your site which may contain illicit drugs keywords within some of the pages. Hope this helps.
I have a subforum that is devoted to drug discussion (marijuana talk & related topics, etc). Is this acceptable with adsense TOS?