Note: Discussion Forums (or Message Boards) have mailing list options--refer to the forum's sponsor for Web browser or email client set up instructions.

Topica
Pop-up ads. In addition to commercial services, Topica now list discussion groups and newsletters (mailing lists) formerly found on Liszt.com. The List Directory is a good place to review and search for discussion groups that are hosted by Topica. Note: Some groups require registration or permission of the owner to access its archives or contemporary content.

Human Development (Google Groups)

• Directory--Google Groups
  • alt.psychology.help psychological help
  • sci.psychology.misc general psychology topics
  • sci.psychology.psychotherapy practice of psychotherapy
  • alt.psychology psychological treatment and behavior
  • sci.psychology.theory theories of psychology and behavior 
  • alt.psychology.jung Jung
  • alt.psychology.personality psychological types

General

The Well (Salon Media Group)
Commercial. Register and select a forum (conference), and identify a specific discussion (topic). The Well has a 15-year history of hosting thousands of uninhibited and intelligent discussions by thinkers from diverse backgrounds.