• Summary
  • Contents

The SAGE Key Concepts series provides students with accessible and authoritative knowledge of the essential topics in a variety of disciplines. Cross-referenced throughout, the format encourages critical evaluation through understanding. Written by experienced and respected academics, the books are indispensable study aids and guides to comprehension.

Key Concepts in Public Relations:

  • Provides a comprehensive, easy-to-use overview to the field
  • Covers over 150 central concepts in PR
  • Paves the way for students to tackle primary texts
  • Grounds students in both practice and theory
  • Takes it further with recommended reading

The history of the Internet began in the 1960s with ARPANET or DARPANET, a project of the US Department of Defense. The (Defense) Advanced Research Projects Agency Network was the world's first packet switching network. Unlike circuit switching networks, packet switching networks cannot be disabled by the dislocation of a single connector. There is always an alternative route around that connector. The Pentagon wished to develop a communications infrastructure that was invulnerable to enemy attack and could continue to operate even if the USA were occupied by an enemy. This capability is critical to the modern operation of the Internet, the linear descendent of ARPANET.

One of the key factors about the Internet is that it is very hard for governments to censor it. That is ...

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