PPC Advertising is one of the most popular ways of advertising. PPC Advertising is a dynamic marketplace, the higher you bid, the higher your advertisement will be displayed in the list. The advertiser pays only for those who click on the listings. It means pay per click. It is used on search engines, advertising networks, blogs, forums etc. The main goal of advertiser is highest income with less money on PPC ads. The main providers are Google AdWords, Yahoo! Search Marketing and Microsoft adCenter.