I have talked about Scratch before in other posts and it was on the EdTechCrew podcast just this last week past; anyway I could not let this one slip - there is a Scratch day coming up to explore and celebrate the use of Scratch. What is Scratch - well put simply it is a freely available multimedia development tool from MIT that can be used to create games, presentations and a whole range other resources (it just depends on your thinking). The great thing about scratch is that it can be easily learnt and has lots of potential.
Any way check out the details on scratch day here and here and if you are going to run an activity in Australia make sure you get it listed on the site - currently we have nothing happening!