This is KILLER with trial offers. I get a prepaid debit card and load it with 40 bux cash. Then I go to an offer thats a free or less than $4 to try. They pay out around 20-40 bux a pop. This is a great way to make money. I usually turn the 40 bux I invest in the card into approximately $348 Every single time. But I always make sure to have low ctr with interstitial traffic and also adsense on the page to make money from the interstitials.