I’ve been looking to monetize my blog and found GunClicks.

“…an online pay-per-click advertising network without censorship on firearms, hunting and sporting websites like you find with other advertising networks.

• As long as your website believes in gun rights and ownership, you are welcome to use our advertising network.
• Advertise using text and banner ads targeted to your audience with full control of click rates and budget.
• Presenting a cost effective advertising system wherein you need to pay only for legitimate clicks on your ads.”

  http://www.gunclicks.com/

Pretty cool.