You might be interested in a classic (well, pre-Microsoft antitrust) book written by a professor who has specialized in antitrust law. I've interviewed him a few times. Excerpt:
"Professor Armentano thoroughly researches the classic cases in antitrust law and demonstrates a surprising gap between the stated aims of antitrust law and what it actually accomplishes in the real world. Instead of protecting competition, Professor Armentano finds, antitrust law actually protects certain politically-favored competitors. This is an essential work for anyone wishing to understand the limitations and problems of contemporary antitrust actions."http://www.amazon.com/Antitrust-Monopoly-Anatomy-Independent...
"Professor Armentano thoroughly researches the classic cases in antitrust law and demonstrates a surprising gap between the stated aims of antitrust law and what it actually accomplishes in the real world. Instead of protecting competition, Professor Armentano finds, antitrust law actually protects certain politically-favored competitors. This is an essential work for anyone wishing to understand the limitations and problems of contemporary antitrust actions." http://www.amazon.com/Antitrust-Monopoly-Anatomy-Independent...