asam - 3:34 am on Jul 6, 2012 (gmt 0)

Hi, I am trying to learn something ahout Ad network. Are all the networks have some traffic requirement for publishers? How about CJ,google adsense, ...or other else? When can we use only one single network to earn money online? Er...I know little about this. thank you all for rely me.

[edited by: eljefe3 at 4:32 am (utc) on Jul 12, 2012]