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Taxonomy
A set of agreed-upon principles according to which information can more logically be stored in an information retrieval system. The term is used in science to describe the classification of natural elements.
Tag Cloud
A tag cloud is a stylized way of visually representing occurrences of words used to describe tags. The most popular topics are normally highlighted in a larger, bolder font. Visitors to a blog or site using
a tag cloud, are able to easily see the most popular tags within the page making it easy to discern the topics covered in one quick look. Also called a weighted list.
Technorati
An Internet search engine that indexes and searches blogs. Technorati tracks blogs and other forms of citizen media, including video blogs (vlogs), podcasts and amateur movies and videos in real-time. All this
activity is monitored and indexed within minutes of posting.
Term frequency (TF)
A measure of how often a term is found in a collection of documents. TF is combined with inverse document frequency (IDF) as a means of determining which documents are most relevant to a query.
TF is sometimes also used to measure how often a word appears in a specific document.
Termination page
According to Chris Sherman's "New Web Map Reveals Previously Unseen ‘Bow Tie’ Organizational Structure", termination pages can be accessed via links from the core (heavily inter-linked part of the Web) but do not link back into the core.
Term vectors
In the classic vector-space retrieval model (Salton), documents and queries are converted to term vectors to allow documents to be matched to queries and ranked based on the number of times the search terms occur in each document.
Text Link Advertising
Paid advertising that is formatted as plain text on a web page, often set off from page content but clearly distinguished from banner ads and other forms of display advertising. Like banner ads, text link advertising space is
served by a network, rather than being hard-coded into the page.
Theme engine
A type of search engine that attempts to automatically classify sites based on the keywords they contain.
Throwaway domain
A domain where the name itself has little value to the owner. Throwaway domains are typically used to experiment with this. It's common among search engine spammers to register throwaway domains to experiment with things like cloaking.
Unethical SEO providers sometimes use throwaway domains to build link popularity to a client's site. This can backfire though as search engines are continually finding better ways to combat spam.
Traffic-death redesign
This sudden and dramatic loss of traffic occurs when a web site is re-designed and the page names all change.
The result is that aside from the main URL, none of the old pages exist anymore, and anyone clicking on a search engine listing gets a 404, or "page not found" error unless other measures are taken.
TSETSB
The search engine that spam built. Pejorative name for Google, which became immensely popular with the SEO community after people realized the link farms they developed for Inktomi worked better on Google.
Sometimes revived when people discuss the MFA/SpamAd issues and the click fraud controversy.
Type-less search engine
A search engine that perform searches via voice recognition, clicks of a mouse or any means other than typing a keyword.
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