| bot | See: Crawler, Googlebot |
| exact match anchor text | the term used when the anchor text of a backlink or internal link exactly matches the keyword or phrase the linked to page is hoping to rank for. |
| volatility | A way to measure a tendency towards change or unpredictability. In relation to search engines, high volatility means there is a high amount of change occurring in the search results. Low volatility means that there is general stability. |
| clustering | the organising of search results when multiple listings appear for one website. Clustering also refers to the way search engines group different authorities on a certain topic together, showing their relationship. |
| google webmaster central blog | This is Googles official blog for webmasters and SEO professionals. This blog is highly helpful as all updates and news regarding Google Search is available here. If you are a serious SEO professional, you need to subscribe this blog. |
