Google Adwords Vs Overture :-

Overture is the main competitor to Google AdWords. Overture is strictly price driven, which requires a ton of editors to perform countless hours of maintenance. Google is a highly mathematical company, and protect the quality of their listings in two ways: they have editors, and more importantly they monitor click through rate.Overture does not always show the correct ads in the correct websites, so it lead to low Click Through Rates (CTR) too.