The Big Five of Commercial Media

After a number of mergers and acquisitions five powerful media conglomerates lead the world's content production and distribution. They operate on an international basis with subsidiaries all around the globe and engage in every imaginable kind of media industry.

Table: The World's Leading Media Companies

Media Company

 1998 Revenues

(in US$)

 Property/Corporate Information
AOL Time Warner (US)

 26,838.000.000*

 http://www.timewarner.com/corp/about/timewarnerinc/corporate/index.html
Disney (US)

 22,976.000.000

 http://www.disney.com
Bertelsmann (GER)

 16,389.000.000

http://www.bertelsmann.com/facts/report/report.cfm
News Corporation (AUS)

 12,841.000.000

 http://www.newscorp.com/public/cor/cor_m.htm
Viacom (US)

 12,100.000.000

 http://www.viacom.com/global.tin


(* Revenues of Time Warner only (merger with AOL took place in January 2000)

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International Standardization Organization

ISO (International Organization for Standardization), founded in 1946, is a worldwide federation of national standards bodies from some 100 countries, one from each country. Among the standards it fosters is Open Systems Interconnection (OSI), a universal reference model for communication protocols. Many countries have national standards organizations that participate in and contribute to ISO standards making.

http://www.iso.ch

Source: Whatis.com

http://www.iso.ch/
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Extranet

An Extranet is an Intranet with limited and controlled access by authenticated outside users, a business-to-business Intranet, e.g.

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