Aussie Schoolmates: Free to use database of past school students. Users must log-in and provide details.
Cyndi's List - Australia & New Zealand: One of the largest collection of genealogical links for the region. Organised by category and regularly updated.
Genseek: Links for Australian genealogy including specific sections for Irish and Aboriginal research.
Looking 4 Kin: Australian genealogical links and chat.
OZ Gen Online: Message board and Australian links.
Society Hill - Australia: Internet directory of contact addresses and links to historical, genealogical and heraldry societies in Australian states and territories.