【正文】 r39。s online advertising and Development sumti Sarkar Department of Information Management, Lancaster University Key words： online advertising, Inter, Development Abstract With the Inter economy, online advertising came into being. The late 20th century, the Inter swept the world, more and more people are beginning to realize 江蘇科技大學(xué)商學(xué)院畢業(yè)論文（設(shè)計(jì)） works with the media features, so the fourth media the word began to frequently appear in daily life. Although online advertising is still a small market share, but as the fourth medium of the Inter development Querang traditional media dare not ignore. Because its growth rate far exceeds other types of media. This article about online advertising in China39。s puter, that user can then be served autorelated ads when they visit other, nonautomotive sites. Ads and malware There is also class of advertising methods which may be considered uhical and perhaps even illegal. These include external applications which alter system settings (such as a browser39。s website. Behavioral targeting In addition to contextual targeting, online advertising can be targeted based on a user39。s search query. For example, a search query for flowers might return an advertisement for a florist39。 response. Purchasing variations: The three most mon ways in which online advertising is purchased are CPM, CPC, and CPA. CPM (Cost Per Impression) is where advertisers pay for exposure of their message to a specific audience. CPM costs are priced per thousand impressions, or loads of an advertisement. However, some impressions may not be counted, such as a reload or internal user action. The M in the acronym is the Roman numeral for one thousand. CPV (Cost Per Visitor) or (Cost per View in the case of Pop Ups and Unders) is where advertisers pay for the delivery of a Targeted Visitor to the advertisers website. CPC (Cost Per Click) is also known as Pay per click (PPC). Advertisers pay each time a user clicks on their listing and is redirected to their website. They do not actually pay for the listing, but only when the listing is clicked on. This system allows advertising specialists to refine searches and gain information about their market. Under the Pay per click pricing system, advertisers pay for the right to be listed under a series of target rich words that direct relevant traffic to their website, and pay only when someone clicks on their listing which links directly to their website. CPC differs from CPV in that each click is paid for regardless of whether the user makes it to the target site. CPA (Cost Per Action) or (Cost Per Acquisition) advertising is performance based and is mon in the affiliate marketing sector of the business. In this payment scheme, the publisher takes all the risk of running the ad, and the advertiser pays only for the amount of users who plete a transaction, such as a purchase or signup. This is the best type of rate to pay for banner advertisements and the worst type of rate to charge. Similarly, CPL (Cost Per Lead) advertising is identical to CPA advertising and is based on the user pleting a form, registering for a newsletter or some other action that the merchant feels will lead to a sale. Also mon, CPO (Cost Per Order) advertising is based on each time an order is transacted. Cost per conversion Describes the cost of acquiring a customer, typically calculated by dividing the total cost of an ad campaign by the number of conversions. The definition of Conversion varies depending on the situation: it is sometimes considered to be a lead, a sale, or a purchase. 江蘇科技大學(xué)商學(xué)院畢業(yè)論文（設(shè)計(jì)） CPE (