Online advertising, also called online marketing or Internet advertising, is a form of marketing and advertising which uses the Internet to deliver promotional marketing messages to consumers. It includes email marketing, search engine marketing (SEM), social media marketing, many types of display advertising (including web banner advertising), and mobile advertising. Like other advertising media, online advertising frequently involves both a publisher, who integrates advertisements into its online content, and an advertiser, who provides the advertisements to be displayed on the publisher's content. Other potential participants include advertising agencies who help generate and place the ad copy, an ad server which technologically delivers the ad and tracks statistics, and advertising affiliates who do independent promotional work for the advertiser.
In 2011, Internet advertising revenues in the United States surpassed those of cable televisionand nearly exceeded those of broadcast television.:19 In 2013, Internet advertising revenues in the United States totaled $42.8 billion, a 17% increase over the $36.57 billion in revenues in 2012.:4–5 U.S. internet ad revenue hit a historic high of $20.1 billion for the first half of 2013, up 18% over the same period in 2012. Online advertising is widely used across virtually all industry sectors.:16
Many common online advertising practices are controversial and increasingly subject to regulation. Online ad revenues may not adequately replace other publishers' revenue streams. Declining ad revenue has led some publishers to hide their content behind paywalls.
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In Internet Marketing, Search Advertising is a method of placing online advertisements on web pages that show results from search enginequeries. Through the same search-engine advertising services, ads can also be placed on Web pages with other published.
Search advertisements are targeted to match key search terms (called keywords) entered on search engines. This targeting ability has contributed to the attractiveness of search advertising for advertisers. Consumers will often use a search engine to identify and compare purchasing options immediately before making a purchasing decision. The opportunity to present consumers with advertisements tailored to their immediate buying interests encourages consumers to click on search ads instead of unpaid search results, which are often less relevant. For the online user, Sponsored Search Advertisement offers highly relevant search results which are based on the consumer’s own queries and, thus, they are considered less intrusive than banner advertisements or pop-ups advertising. In addition, Sponsored Search Advertisement reduces online user search costs and increases the accessibility to useful information within a limited time frame. Consequently, Sponsored Search Advertisement has become an important element of online users browsing and information searching experiences on the Web. Search advertising is an alternative to SEO and SEM.
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