I have just started to use performancingads on binaryday. Since I am just starting to figure out how this thing works, I have set the price at 0.5$ per week. That translates to less than 0.1$ eCPM.
Why 0.5$ per week
That is the minimum allowed by the system 
The idea is not to make money but to figure out how this entire thing works.
0.5$ per week is not free
OK. I will refund you the money if you let me know before buying the ad space and then let me know your experience in advertising on my site.
This is valid for only 1 week from today
Good TryAdvertise on binaryday for free624|just some value|9