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  2. Pay-per-click - Wikipedia

    en.wikipedia.org/wiki/Pay-per-click

    Internet marketing. Pay-per-click (PPC) is an internet advertising model used to drive traffic to websites, in which an advertiser pays a publisher (typically a search engine, website owner, or a network of websites) when the ad is clicked. [1][2] Pay-per-click is usually associated with first-tier search engines (such as Google Ads, Amazon ...

  3. Total dissolved solids - Wikipedia

    en.wikipedia.org/wiki/Total_dissolved_solids

    TDS = k e EC. where TDS is expressed in mg/L and EC is the electrical conductivity in microsiemens per centimeter at 25 °C. The conversion factor k e varies between 0.55 and 0.8. [5] Some TDS meters use an electrical conductivity measurement to the ppm using the above formula. Regarding units, 1 ppm indicates 1 mg of dissolved solids per 1,000 ...

  4. Quality Score - Wikipedia

    en.wikipedia.org/wiki/Quality_Score

    t. e. Quality Score is a metric used by Google, [ 1] Yahoo! [ 2] (called Quality Index ), Facebook [ 3] (called Ad Quality) and Bing [ 4] that influences the ad rank and cost per click (CPC) of ads. To determine the position of the ad on a search engine, each ad is allocated using a process which takes into account the bid and the Quality Score.

  5. Click-through rate - Wikipedia

    en.wikipedia.org/wiki/Click-through_rate

    e. Click-through rate (CTR) is the ratio of clicks on a specific link to the number of times a page, email, or advertisement is shown. It is commonly used to measure the success of an online advertising campaign for a particular website, as well as the effectiveness of email campaigns. [1][2] Click-through rates for ad campaigns vary tremendously.

  6. Social network advertising - Wikipedia

    en.wikipedia.org/wiki/Social_network_advertising

    Social network advertising. Social network advertising, also known as social media targeting, is a group of terms used to describe forms of online advertising and digital marketing that focus on social networking services. A significant aspect of this type of advertising is that advertisers can take advantage of users' demographic information ...

  7. View-through rate - Wikipedia

    en.wikipedia.org/wiki/View-through_rate

    View-through rate. A view-through rate (VTR), measures the number of post-impression response or viewthrough from display media impressions viewed during and following an online advertising campaign. Such post-exposure behavior can be expressed in site visits, on-site events, conversions occurring at one or more Web sites or potentially offline:

  8. Social media optimization - Wikipedia

    en.wikipedia.org/wiki/Social_media_optimization

    Social media optimization (SMO) is the use of a number of outlets and communities to generate publicity to increase the awareness of a product, service brand or event. Types of social media involved include RSS feeds, social news, bookmarking sites, and social networking sites such as Facebook, Instagram, Twitter, video sharing websites, and ...

  9. Tower defense - Wikipedia

    en.wikipedia.org/wiki/Tower_defense

    Tower defense (TD) is a subgenre of strategy games where the goal is to defend a player's territories or possessions by obstructing the enemy attackers or by stopping enemies from reaching the exits, usually achieved by placing defensive structures on or along their path of attack. [ 1 ]