Slow down there guy, what site? How many clicks can you deliver what protection do you use to ensure that its not repeat visitors, or bots or spam, or even fraudulent?
Traffic comes from advertising network that has all those mechanisms built in. I can't tell you the details (which network,...). That's why i'm giving out $10 sample packages, so you can evaluate the traffic.
It depends on your ad (you have to provide 300x250 banner ad)... but usually i can deliver decent traffic - few thousand clicks for sure, if not more