Reciprocal linking - Swapping of links between two websites.

Scooter - Spider used by Altavista.

Search Engine Optimization (SEO) - The phenomenon of updating the site content along with the html codes and meta tags to make a site search engine and user friendly.

Search Engine Marketing (SEM) - Marketing website for improving rank in search engine results.

Search Engine Results Page (SERP) - Result listings shown when a keyword is searched.

Shopping Cart - Software used to store products and to keep a track of sales in an ecommerce website.

Slurp - Spider used by Inktomi.

Spamdexing – A spam technique that increases the rank of webpages Submission of webpages in Ses. These include submitting hundreds of pages with minor alterations, small and hidden text etc.

Spamming - Term used for unsolicited junk mails.

Spider - A program used by search engines that periodically searches the web to locate new contents on the web or entirely new websites.

Static IP Address - An IP address that remains unchanged each time a person logs on to the internet. It is fully dedicated to a single website.

Stemming – Related keywords like surf, surfing and surfers all have “surf” as the stem (base). Few SEs use stemming to provide results from all the related terms for an entered search terms.

Stop Words - Frequently and commonly used words that are ignored by a search engine while indexing.