The four largest media rivals in the U.S. are large enough to compete on a global scale: Time Warner, Viacom, Comcast and Disney. Using your web browser, explore each company's web site and then answer the following questions: 

a. Each of these media companies has a variety of media holdings but may concentrate on one kind (books, movies, television, print) over another.Compare and contrast their holdings.

b. Does any company seem to have "cornered the marketing" in a given area?

c. These companies have penetrated almost every media market in one form or another. Would you consider their vast ownership a media monopoly? Why or why not?

d. From the companies' standpoints, what is the positive aspect of being so diversified?