Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
You have to read this paper! Microsoft - A History of Anticompetitive Behavior and Consumer Harm [PDF], and it's from the European Committee for Interoperable Systems, or ECIS. ECIS has submitted it in support of the EU Commission's recent preliminary findings, on January 15, 2009, that Microsoft violated antitrust law by tying IE to Windows.
It is, to the best of my knowledge, the first time that the issue of Microsoft's patent threats against Linux have been presented to a regulatory body as evidence of anticompetitive conduct.
It presents a history, albeit not totally comprehensive, of some of the notable anticompetitive conduct from the past, like against DR-DOS and Netscape and WordPerfect, but it also presents current issues, including the saga of how ISO/IEC DIS 29500, formerly known as OOXML, got approved as a standard: