Chitika:

Headquarters:
Marlborough, Massachusetts, USA.
Website: Chitika.com
Chitika is one of the largest search targeted advertising networks. The company serves over 2 billion ads per month across more than 34,000 websites.
Chitika offers search targeted advertising solutions. Web publishers can make money from their search engine traffic using chitika’s personalized ads.
More significant side of Chitika is that it can be used with Google Adsense or as an Adsense alternative.

Chitika premium
These ad units are smart, personalized targeting ad solution that provides premium content. Its ad units are Pay per click (CPC) and designed to be their highest performing ad unit Cost per impression (eCPM) available to date. According to Chitika premium ad units do not conflict with the Google Adsense terms of use because the ad units are not contextual and the ad units do not look Google Adsense ads.
Chitika provides many facilities to earn maximum revenue.

Chitika ad products
1) eMiniMalls Ads
eMiniMalls brings Pay-per-click production promotion. It supply visitor comparative shopping information without even leaving your site.
2) Related Products Unit (RPU)
This is non-intrusive text link format right in to you contents, RPU is PPC unit.
3) ShopLincs
It will allow you to create your shopping environment for your audience.
4) ShopClouds
It displays popular products in an interactive tag cloud format. Each linked product will give Cost-per-click (CPC)
5) Owna
Display case one of thousands of products in any of five Ownas on you blog. They are available in different skins.
6) Linx
It is good technique that they scan your posts on blog and convert some words in links and indicated by double underline. When visitor hover on word the ad pop-up & if visitor click on it they pay you through CPC unit.
7) Chitika for parked domains
It is very simple but most significant facility provided by Chitika. You can set your own CPC store and earn huge revenue from it. Just redirect your old or not in use domain to specific link url which Chitika built special for you. It looks likes pro e-commerce shopping site. They pay you when anyone click on your Chitika site link as well as anyone buy product from your Chitika site.

Payment methods
They pay you through your paypal account or by the checks. The minimum payment amount for paypal is USD 10 in a month and 50 for checks. They give $0.1 and above CPC rates.
So I recommend you to join Chitika now.