Instead of relying on a group of editors or solely on the frequency with which certain terms appear, Google ranks every web page using a breakthrough technique called PageRank™. PageRank evaluates all of the sites linking to a web page and assigns them a value, based in part on the sites linking to them. By analyzing the full structure of the web, Google is able to determine which sites have been “voted” the best sources of information by those

Junk traffic can also suck the life out of your campaign. Most, but not all pay per click services or providers distribute a segment of their budget to several search engines and other sites via their search partners and content networks. While you certainly want your ads displayed on Google and/or Bing, you may not want your ads showing up and generating clicks from some of the deeper, darker corners of the Internet. The resulting traffic may look fine in high-level statistics reports, but you have to separate out partner network campaigns and carefully manage them if you’re going to get your money’s worth.
Advanced Data Structure Amazon Aptitude Aptitude Arrays Bit Magic C C C++ Computer Networks CPP-Functions C Quiz Dynamic Programming GBlog Geometric Graph Hash Internship Interview Experiences ISRO Java Java-Collections Java-Functions Java-lang package Java - util package JavaScript Linked List Mathematical Matrix Microsoft PHP PHP-function Python QA - Placement Quizzes QA - Placement Quizzes School Programming Searching series Sorting STL Strings Technical Scripter Tree UGC-NET Web Technologies

Remember, depending on your targeting methods, the placement might not be that important. If you’re targeting the user through interests or remarketing, the placement is just where that user visits. Of course, some sites will still perform better than others, but keep in mind which targeting method you’re using when evaluating placement performances.
The flat-rate model is particularly common to comparison shopping engines, which typically publish rate cards.[5] However, these rates are sometimes minimal, and advertisers can pay more for greater visibility. These sites are usually neatly compartmentalized into product or service categories, allowing a high degree of targeting by advertisers. In many cases, the entire core content of these sites is paid ads.
Search engine optimization (SEO) is the process of affecting the online visibility of a website or a web page in a web search engine's unpaid results—often referred to as "natural", "organic", or "earned" results. In general, the earlier (or higher ranked on the search results page), and more frequently a website appears in the search results list, the more visitors it will receive from the search engine's users; these visitors can then be converted into customers.[1] SEO may target different kinds of search, including image search, video search, academic search,[2] news search, and industry-specific vertical search engines. SEO differs from local search engine optimization in that the latter is focused on optimizing a business' online presence so that its web pages will be displayed by search engines when a user enters a local search for its products or services. The former instead is more focused on national or international searches.