Digital Inspiration has the scoop on Chitika moving back into normal contextual text ads. These are ads that they originally launched Chitika with before developing eMiniMalls but which they put on hold (and many thought scrapped) when eMiniMalls took off. Looks like they are back (or at least it looks like they are beta testing them with some publishers).
Keep in mind before signing up for them (and I don’t think there is a way to publicly do it yet) that they are contextual ads and they look very similar to AdSense and YPN ads. As a result you’ll not be able to use them on the same page as AdSense or YPN ads (unlike eMiniMalls which are non contextual and have a unique look). But if for one reason or another YPN or AdSense don’t put your buttons you might want to give them a go when they go live again. You might also want to try them as alternate ads to the other programs or even rotate them into the mix of ads showing on your blog (as some publishers are doing with YPN and AdSense – ie showing different ad programs every second or third impression).