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
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(* Revenues of Time Warner only (merger with AOL took place in January 2000)
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Signals Intelligence (SIGINT) is a category of intelligence comprising, either individually or in combination, all communications intelligence, electronics intelligence, and foreign instrumentation signals intelligence, however transmitted. The intelligence derived from communications, electronics, and foreign instrumentation signals.