Charles,
Just an FYI, when I clicked on the mangosteen ad (what can I say, I'm curious) that is frequently on the site it goes to this URL

http://wowmangosteen.mangosteenevolution.com/

with this message...

The enroller's site you are trying to visit is not active at this time.

For what seems like the last 2 days or so. Not sure if this affects your advertising revenue or not. But I'm guessing they aren't paying for clicks if the site is down? Might want to switch partners....