Best ad networks for smaller publisher?

I have been looking for a good ad network for awhile, gave up for a bit, but I am now trying again. I have already tried Google Adsense ( it yielded about $4-$5 a day) but it got banned for fraud clicks -_- I’ve been using contextweb for awhile, but it doesn’t yield much and it has very limited banner sizes…
About my site: It is the only fan site that provides tips/help for a small online game. It has absolutely no other competition. We get about 4k views per day and at least 400-500 returning users per day. My site is hosted under a free domain and I don’t have plans on upgrading to my own domain any time soon (nor do I have the money for it lol).
Can you guys recommend some good and trustworthy ad networks that my site is legible for? No scams or virus/popup […]

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