| google checkout | a payment service provided by Google. |
| link accessibility | The ease with which a link can be found by human visitors or crawlers. |
| cache-to-ranking latency | Noun phrase. The length of time that elapses from a pages contents being reported in a search engine cache image until the page contents are found for specific queries. |
| information retrieval | The process of searching for information (e.g., text, images, video) from a large database and then presenting the most relevant information to an end user. |
| vector | Noun phrase. In mathematics, any ordered list of items represented as a sequential pairing contained in parentheses or braces in 1 or more dimensions. In computer science, vectors are used to perform transformations on large data sets and to map control bits to physical devices. Search engines use vector analysis when processing queries and indexing Web documents. |
