PBS
Pbs Frontline: The Columbian Cartels
This article describes some of the world's most well-known cartels, the Columbian drug cartels.
US Department of Justice
Us Department of Justice: Antitrust Enforcement and the Consumer [Pdf]
This article outlines how the Antitrust Division of the Department Of Justice works for and protects the typical American consumer.
Wikimedia
Wikipedia: Price Fixing
An encyclopedia article on price fixing discusses what it is, gives examples of different methods of price fixing, example of price fixing in international settings, and information about the allegations that the U.S. record industry...
Wikimedia
Wikipedia: Cartel
This on-line encyclopedia provides the legal definition and examples of a cartel.
Other
Antitrust Report: Department of Justice Amnesty Program Takes Another Turn
This article looks at whether, once a company or individual has been offered amnesty in cases such as price fixing or collusion, can the Justice Department reverse their offer of amnesty? (4/1/2005)
PBS
Pbs: American Experience: The Cleveland Massacre
The details surrounding the so-called "Cleveland Massacre," in which John D. Rockefeller bought up competitors' oil refineries, are set out here.
Wikimedia
Wikipedia: Collusion
Provides a definition and many examples of collusion, along with obstacles facing a successful collusive agreement.