I'm experimenting with eMiniMalls and sent a lot of suggestions to Chitika. Compared to all of my previous attempts with affiliate marketing, eMiniMalls seem to be the magic word. The CTR is quite low when compared to AS, but quite interesting on the pages where I put it, where other affiliate programs actually produced... nothing. The EPC seems to near 0.40$, which is interesting indeed.
Currently I put them on pages where there is no other advertising. My main concern about putting them on a page where there is already AS is whether they would divert visitors' attention from AS ads, which I wouldn't love :-), or not.