To make good money with adsense, you will need to get lot of targeted traffic. Organic traffic is most targeted so you should concentrate on improving your sites' ranking in Search Engines. Traffic = $$$ Do some SEO, and try to increase organic traffic.
A few years ago adding this to browser proxy sites wasn't a hard thing to do. You guys need to focus on what made the money, not the proxy site Send them to a area where they have to download something, or perform an action and set your adsense link keywords to "whatever download" you know? People will click the links looking for the download especially if you position it right and they think its part of your content. How is a proxy websites organic traffic not targeted? You realize when kids find these websites, they quickly get spread around to their friends at school. Nowadays, you could probably use the CPA Gateway after they press submit.