haha that's pretty crazy. way back when I first started with Adsense I got 1 click for $9.90 but then Google corrected their error LOL. I hope you get to keep it.
This means the campaign was targeted by location and product. If a campaign is targeted to a certain city only based on the visitor ISP location that means the person who click the ad in your site was looking for a certain product that was targeted to his city only.
hi I feel i dont have competetion and i am not making more than 200 a day with adsense. But i would like to share the niche. Its stock market in India. I dont know if i can put link here.... but you can get it at google.com and search "stock market india" its one which starts with word "paisa" . haha.. nice exercise. Its 1st or second result. Sam