This site has over 38,000 photographs of soldiers, sailors and nurses who served in World War One. Biographical details are also included.
http://www.ww1anzac.com
This site has background information on the Anzacs as well as the Gallipoli Graveyards index which includes details of 3219 soldiers buried at Gallipoli and 6393 who are listed on memorials.
http://www.anzacs.net
Searchable database of men and women who served in the First Australian Imperial Force 1914-1918. This site gives lots of information on each person including name, address, next of kin, awards, medals, fate etc. and links through to the embarkation lists.
https://www.aif.adfa.edu.au/index.html
This site was created for the centenary of WWI. It contains original records from the following: Australian Imperial Force; Australian Naval and Military Expeditionary Force; Royal Australian Navy; Australian Flying Corps; Australian Army Nursing Service; depot unit personnel; official artists, photographers, war correspondents and historians such as C.E.W. Bean; internees; munitions workers; New Zealand Boer War service records. You can also contribute your own photographs and stories.
http://discoveringanzacs.naa.gov.au
Photographs and biographical information on soldiers killed during the First World War.
http://www.gravesecrets.net/wwi-pictorial-honour-rolls.html
Database of about one million Australians who served in the defence forces and the merchant navy during World War Two.
http://www.ww2roll.gov.au
Search for members of the Australian armed forces in a variety of databases including the Roll of Honour. Also included is a military glossary, information on Australian military units, war diaries and official war histories. Look under People - Family History for a really useful range of Information Sheets.
http://www.awm.gov.au