it is only useful during the month of august as Student came back to their school and they need new proxies to open orkut, facebook ..etc but you can earn $10 to $20 monthly from a proxy site if you promote it on regular basic
They appear to take up massive bandwidth. So if you are making 30 bucks a month, but spending 20 for hosting... It may not be worth your time/energy.
proxy sites are good when u can get huge traffic. proxy sites also use lots of bandwidth and server resourse. so most servers not allows proxy sites.
Thanks mentos. The traffic, is it more from china and so on than before? And adsense are still good on proxies?