The Links
  The F-Minor website is the home of the F-Minor mailing list, maintained by Mary-Jo Watts. A subscription to the F-Minor list is a must for any Gould enthusiast. It's been active since 1995 (?) and has an active core of very knowledgable and friendly Glenn Gould fans.  
  Many of Glenn Gould's personal possessions, including "318", his favorite piano went to the National Library of Canada. To their great credit, the library has used a lot of the material to create a permanent Virtual Exhibition. Well worth a visit!  
  The Glenn Gould Foundation has a number of publications to Glenn Gould and has organized occasional Glenn Gould Gatherings, the last one in 1999 in Toronto.  
  Sony manages the GlennGould.com site, which predictable promotes Glenn Gould's records.  
  a30a.com, one of my favorite sites, totally focussed on the Goldberg Variations. Just amazing how many have recorded the Goldbergs. A great credit to Yoshiro Shikata for his tireless efforts to record everything you would ever want to know about the Goldbergs.  

  I also like Bradley Lehman's comments, originally posted to F-Minor and the Wikipedia page on Glenn Gould as sources of good information on Glenn Gould.