InformationWeek's cover story this week is "Open Source Goes Corporate" describing in depth 10 large corporate users of Open Source software. Although there are quotes from MySQL guru Jeremy Zawodny at Yahoo, the real story is about how mainstream corporate users like ABN Amro, Sabre, Fidelity, Disney, Continental Airlines and others are now adopting open source software. For anyone who needs evidence to show their managers that open source is good enough for Enterprise use, this is a great article. These are big applications in billion dollar companies. They may not be "betting the farm" on a completely open source environment, but they are using it for business critical applications that have dozens or even hundreds of servers. Also, check out the audio presentation by Jeremy Zawodny from OSCON below.