Pay-per-Click(PPC) is according to Click on ads or email messages of the number of users to Pay a network advertisement pricing model. Is the enterprise Pay purchase of search engine specific version of a keyword marketing way, PPC paid for mining pay-per-click Pay conference system (Click), is a different from the traditional interference type advertisement dissemination way, in the user at the same time, to assist in the search for potential customers can more readily active close to enterprises to provide products and services. Is according to the pay-per-click advertising (performance).