From what I see, it is based on YouTube. I'm not too familiar with YouTube's ad rules but can Google pre-fix any video with an ad? If so, can someone else put their ad (via YouTube ads) before my Virool video ad?
Might want to proof-read the FAQ some more. I'm seeing sentences like: "Since system is auction-based you result may vary depending on current load of our network. For example if you maximum bid is 5 cents per view your ad will be only shown after all more expensive videos."
Testimonial from their website <i>Our video jumped from 0 to over 500,000 YouTube views in one weekend</i>.<p>Very smart idea - making out of the shady YouTube-view-buying dealings a legitimate business.