seo adwords guide

Google AdWords
 is an online advertising service that places advertising copy at the top or bottom of, or beside, the list of results Google displays for a particular search query. The choice and placement of the ads is based in part on a proprietary determination of the relevance of the search query to the advertising copy. Ad Words has evolved into Google's main source of revenue. Google's total advertising revenues were USD $42.5 billion in 2012. Ad Words offers pay-per-click, that is, cost-per-click (CPC) advertising, cost-per-thousand-impressions or cost-per-mille (CPM) advertising, and site-targeted advertising for text, banner, and rich-media ads. The Ad Words program includes local, national, and international distribution. Google's text advertisements are short, consisting of one headline of 25 characters and two additional text lines of 35 characters each. Image ads can be one of several different Interactive (IAB) standard sizes.

Sales and support for Google's AdWords division in the United States is based in Mountain View, California, with major secondary offices in Ann Arber, Michigan and New York. The third-largest US facility is in Mountain View, California, headquarters. Engineering for Google Ad Words is based in Mountain View, California.

Google has an active official public Help and Support Community maintained and frequented by highly experienced Ad words users (referred to as "Top Contributors") and Google employees

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