Economics of the Communication Industries (Comm570) François Bar 

Resources

FreePress: who owns the media? http://www.freepress.net/ownership/chart.php
Ben Compaine's WOTM blog: http://wotmedia.blogspot.com/

Communication Industry News

Review of economics concepts:
Theo recommends the following as a straighforward, simple reference book:
Economics (Barron's Business Review Series) by Peter Eisen (2000)