I didn't know that chitika pays per click !! Is this true .....
But on the other hand, there is really no alternative for adsense yet. Their flexible ads are the best on the market at the moment. They are consistent with paying publishers and most trusted in webmaste community. There are others, I tried peakclick feeds but they pay like 1c for click. My god such a waste of advertising space. Others I didn't try and I will probably never, except if I get kicked out of adsense.