| paul haahr | A famous google employee |
| webspam | Any methods that exist solely to deceive or manipulate search engine algorithms and/or users. |
| stop words | Usually refer to the most common words in a language and are normally filtered out in queries by search engines. Can be similarly filtered out from webpages when being ranked or indexed. |
| robots exclusion | A text file that instructs search engine bots on how to process information on each webpage. |
| 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. |
