| heading tag | Heading tags indicate the levels of the headings within a webpage or document. These tags form a hierarchy from highest level of importance/organization to the lowest . Using heading tags to relevantly indicate the levels of your webpage helps search engines understand your content better which is good for SEO. |
| pay-for-performance | Term popularized by some search engines as a synonym for pay-per-click, stressing to advertisers that they are only paying for ads that perform in terms of delivering traffic, as opposed to CPM-based ads, where ads cost money, even if they dont generate a click. |
| boolean search | Mathematical operators that users can add to searches in order to further specify intent or unique parameters. |
| trusted site | An authority site is a very high-quality website that is trusted and respected by industry experts, other websites, and search engines. Such types of websites have usually many incoming links from other hub/expert sites. Authority sites enjoy high page rank by search engines. Back-links from authority sites also improve the ranking of a website on search engines. Wikipedia is an example of an authority site. |
| facebook retargeting | This is a cookie-based technology that uses Javascript code to learn what customers like when visiting certain websites, and then displays those types of ads when those users return to Facebook. |
