Founded in 1997, BookFinder.com has become a leading book price comparison site:
Find and compare hundreds of millions of new books, used books, rare books and out of print books from over 100,000 booksellers and 60+ websites worldwide.
Four Theories of the Press:
Presented here are the four major theories behind the functioning of the world's presses: (1) the Authoritarian theory; (2) the Libertarian theory; (3) the Social Responsibility Theory; and (4) the Soviet Communist Theory. These theories, analyzed in the light of modern thought, summarize the conflict among the major approaches to communication since Plato's day. [via]