Atheist Bereavement Support
   Message board for atheists who have lost loved ones.
   http://groups.yahoo.com/group/Atheistbereavementsupport/

Atheist Community
   Discussion forum for atheists and their friends.
   http://forums.delphiforums.com/abatheism/

Atheist Empire
   Atheist message board.
   http://groups.yahoo.com/group/atheistempire/

Atheist Only
   A place for atheists to come to discuss any issue from religion, and social issues. Membership required.
   http://groups.yahoo.com/group/atheist_only/

Internet Infidels Discussion Forum
   Forum with topics such as philosophy, existence of God and evolution vs. creation.
   http://www.iidb.org/vbb/

Secular humanism
   Discussion group.
   http://groups.yahoo.com/group/sechum-L/