Once a year, publishers pick a single issue to give away in an attempt to lure new customers into the crack-like addiction of monthly comic buying.
Stores participating can be found on website. For VIC and Sydney:
VIC: Classic Comics, Shop 7, 50 Bourke St, Melbourne, Comics R Us, Level 1, 220 Bourke St, Melbourne and Minotaur, 121 Elizabeth Street, Melbourne,TRADING CARDS AUSTRALIA 16 EVERUGE STREET MOONEE PONDS
NSW: KINGS COMICS 310 PITT STREET SYDNEY, KINOKUNIYA BOOKSTORE AUSTRALIA,SHOP R.P 2.02 THE GALERIES,"VICTORIA, 500 GEORGE STREET" SYDNEY
This was touched on here, http://www.ozbargain.com.au/node/368
Edited - JeffreyM: Edited link to direct store locater site.
What a newsagent owner thinks of FCB day: Australian's Newsagency Blog