SayUncle recently wrote here and here about how Google refuses to allow Google ads on gun blogs because….
the content of your site is largely focused on firearms, the site is not a good fit for the AdSense program.
I just realized that Google itself advertises on it’s own ‘site largely focused on firearms’! The Google Groups rec.guns group!
Here is a screenshot of Google ads on one of the rec.guns posts:
If this isn’t a double standard I do not know what is.