Forum Moderators: skibum
From my experience, here's the answers to the questions:
#1: Using Chitika with Adsense (and presumbly others) makes Chitika perform not as well as when it's placed alone.
#2: For me, the only formats that work are the ones where the Best Deals tab has multiple prices, preferably highly differing.
#3: Chitika has said that they notice higher CTR's when the ad blends into the page.