| vertical search engine | Vertical search engines are specialized search engines meant for people interested in a particular area, such as, Amazon for shopping, YouTube for Video and Google Scholar for scholarly papers. |
| de-indexed | Refers to a page or group of pages being removed from Googles index. |
| ffa | FFA stands for Free for all and refers to websites that allow anyone to add a link pointing to their pages. FFA pages have no human intervention and usually they dont weight much in search relevancy as they usually point to low quality website. For example, on an FFA page you can find a sport site listed between art museums and spatial engineering. |
| panda update | Google updated its algorithm in 2011 to include a search filter designed to stop websites with poor quality content from making their way into its top search results. This update was called Panda. |
| protected query | Noun phrase. Protected Name Space. |
