General

• HATT: Yahoo discussion group - around 7,000 members. Discuss all things related to online Help & authoring. 
  http://groups.yahoo.com/group/HATT/
• microsoft.public.helpauthoring
  A former Microsoft forum now hosted only as a Google group. 
  https://groups.google.com/forum/#!forum/microsoft.public.helpauthoring
• MS Help 2:  Visual Studio 2002/2003/2005/2008 help authoring.
  http://tech.groups.yahoo.com/group/MSHelp2/
• MS Help Viewer: Visual Studio VS 2010 /2012 help authoring (AKA Help 3)
  http://tech.groups.yahoo.com/group/MSHelpViewer/
• MS Help Forums: Microsoft no longer provide a specific discussion group for their help technologies. We are advised to now post in the "VS General" MSDN forum area. The old help areas are now archived and marked readonly.
  http://social.msdn.microsoft.com/Forums/vstudio/en-US/home?forum=visualstudiogeneral
• Microsoft Support: If you are really stuck there is an email that goes directly to the help development group in Redmond Seattle. Please use it sparingly,
  hlpfdbk@microsoft.com

Vendor Support Sites