I don't know about chitika, but I used adBrite and never saw a dime from it, whereas I was able to make a modest amount with Project Wonderful. Not as much as AdSense, but unlike AdSense, Project Wonderful never accused me of fraud and then ran off with over $300 that I had earned through their service. If I had known how Google would treat me, I never would have signed up, regardless of how much I made in the meantime.
It was really easy to make a tiny amount of money from adbrite.
The minimum payout is only $5 iirc, which is much more easily attained than the $100 from adsense even though they pay less per click. The annoying thing is the 90 day delay.
