Chitika is another CPC network with a variety of ad types. One unique feature of Chitika is the ads only show up when people find your site via internal or external search.
Let's say someone finds one of your pages by searching for "blue hats" in Google. They will see Chitika ads related to blue hats. If another visitor just surfs on that same page by clicking through your site, they won't see any Chitika ads.
I tried Chitika on this site and the conversions were poor. This network seems to be best for shopping sites due to the kinds of ads in their database. Not many ads were relevant to my content.
