MikeBowler and AlexViggio ran a BOF about XpUserGroups at XpUniverse (July 2001).

There is a mailing list devoted to discussion about these user groups.  If you run an Xp User Group or are thinking of starting one then please join us. 

http://groups.yahoo.com/group/xpusergroups

''why yahoo group? why not a wiki?''

It seemed like the simplest thing at the time - MikeBowler

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For a list of XP user groups around the world, see CategoryXpUsersGroup