A quick guide, if you are planning events or marketing activities with schools, on the Easter school holidays in Australia 2011 - state by state.

State Easter Holiday 2011
NSW 11th - 27th April
VIC 11th - 27th April
WA 19th April - 4th May
QLD 15th - 27th April
SA 15th April - 2nd May
ACT 15th April - 2nd May

If you're planning any activities with schools, then the blackout period is effectively from Friday 8th April until Thursday 5th May.