When I go abroad I always spend so much time looking for a wifi and this could be an insteresting solution to my problem
But by watvhing your website, the numbers you give seems a little high : if one user connects to your wifi and 1 ads is displayed you earn 3 dollars in 30 days? does the user needs to be connected to the spot for 30 month? Will it have ads displayed once, every day, every hour? Even if its every 10 min that he have an ads, it seems really high! With Google adsense, even with 10000 Different visitors on your website per month you only get less than 100 dollars per month. Therefore I cannot see how you could get 3 dollars for 1 unique visitor. Could you elaborate more on the subject?
Advertising is shown every time you connect to wi-fi, so the owner of the router can set the interruption of the session by displaying ads, for example, every hour. Yes, quite good prices are obtained for earnings, while advertisers pay even less than on other sites.
