Henry Jenkins article, Convergence? I Diverge. published Technology Review June 2001 (please see link below) is of particular interest to us.
Follow me... http://web.mit.edu/cms/People/henry3/converge.pdf

Jenkins defines 5 types of convergence:

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  Technological Convergence: the digitisation of all media content.
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  Economic Convergence: the horizontal integration of the entertainment industry, in particular the concept of transmedia.
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  Social or Organic Convergence: the way consumers’ of media employ multitasking strategies for navigating the new information environment, usually occurring cognitively.
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  Cultural Convergence: new forms of creativity at the intersections of various media technologies, industries and consumers. This encompasses the idea of 'prosumers' and user generated content, as well as particpatory culture.
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  Global Convergence: the cultural hybridity that results from the international circulation of media content, includes the concept of a 'global citizen'.