Folk Songs of Australia is an authorative online collection of songs maintained by Mark Gregory. Many of the recent additions have come from his Trove research.
An Australian Folk Song A Day is a great repository of some common and much less common Australian songs put together by John Thompson. The songs have been recorded by John and previously could be listened to online. They are now available as a 2 CD set for $50 from his website.
Old and Not So Old Bush Songs is Dave Johnson's collection of Australian songs assembled and published as a weighty tome and also available online. The paper copy can be purchased directly from Dave at functions. The online version provides access to the abc files which can be useful for modifying keys to suit other vocal ranges.
Chris Kempster Songbook collated by Wayne Richmond for the 2004 National Folk Festival Tribute Concert
Ned Kelly Songs assembled for Keith McMenomy's workshop at the Gathering 2010 by Dave Johnson
Songs of Duke Tritton collated for a workshop on Duke Tritton at the Gathering 2011 by Dave Johnson