Harmonious Tasmanian Friends

Hobart Harmony - Local chapter of the international Sweet Adelines.
Southern Gospel Choir
Festival of Voices - Tasmanian showcase of local talent and special guests.

Barbershop Abroad

AAMBS - Australian Association of Mens Barbershop Singers
The Blenders - Australian Champion Chorus 2005
Barbershop Harmony Society - Official source of barbershop goodness
Barbershop Wikipedia Article - General information