Concepts inTAGME: on-the-fly annotation of short text fragments (by wikipedia entities)

Wikipedia

Wikipedia is a free, collaboratively edited and multilingual Internet encyclopedia supported by the non-profit Wikimedia Foundation. Its 22 million articles have been written collaboratively by volunteers around the world. Almost all of its articles can be edited by anyone with access to the site, and it has about 100,000 regularly active contributors. As of, there are editions of Wikipedia in 285 languages.  more from Wikipedia

Hyperlink

In computing, a hyperlink (or link) is a reference to data that the reader can directly follow, or that is followed automatically. A hyperlink points to a whole document or to a specific element within a document. Hypertext is text with hyperlinks. A software system for viewing and creating hypertext is a hypertext system, and to create a hyperlink is to hyperlink (or simply to link). A user following hyperlinks is said to navigate or browse the hypertext.  more from Wikipedia

Web search engine

A web search engine is designed to search for information on the World Wide Web. The search results are generally presented in a list of results often referred to as search engine results pages (SERPs). The information may consist of web pages, images, information and other types of files. Some search engines also mine data available in databases or open directories.  more from Wikipedia

Annotation

An annotation is a note that is made while reading any form of text. This may be as simple as underlining or highlighting passages. Annotated bibliographies give people a source that is useful to an author in constructing a paper or argument. Creating these comments, usually a few sentences long, establishes a summary for and expresses the relevance of each source prior to writing. The term also has a special meaning in a number of other fields.  more from Wikipedia

Twitter

Twitter is an online social networking service and microblogging service that enables its users to send and read text-based posts of up to 140 characters, known as "tweets". It was created in March 2006 by Jack Dorsey and launched that July. The service rapidly gained worldwide popularity, with over 140 million active users as of 2012, generating over 340 million tweets daily and handling over 1.6 billion search queries per day. It has been described as "the SMS of the Internet.  more from Wikipedia