The Barnaby bear site from the BBC has stories, games, and other activities about travel, weather, recycling, map symbols and other countries such as Australia. It is suitable for junior primary pupils. Suitable for interactive whiteboard.
Teaching Resources about Australia for KS1 & KS2 - SparkleBox
Animals of Australia: Dingo | Education.com
Australia Fact Cards - Treetop Displays - Downloadable EYFS, KS1, KS2 classroom display and primary teaching aid resource
A whole bunch of Australia Day party printables (some paid and some free) from over at Life's Little Celebrations.
Lesson plans, resources, and ideas for countries in Australia and Oceana. Great explanation of the flag.