I’m not sure when this happened but there is now a Childrens’ Court of Victoria icon at AustLII. The cases are both criminal prosecutions and child protection applications, with identifying features suitably anonymonised.
Judge Grant and Magistrate Power (previously mentioned here) are the two most frequent contributors, but other magistrates’ decisions are presented as well.
Some cases provide handy starting points for research of issues particular to the Childrens’ Court. The case of Herald & Weekly Times v AB  VChC 3 is a thorough exploration of considerations for and against an application to publicly name an accused child under s 534 of the Children, Youth and Families Act 2005. Likewise, Victoria Police v CB  VChC 3 cites useful authorities on whether a matter should be determined in the Childrens’ Court or a child committed for trial in the County Court.
Over in the criminal division of the Magistrates’ Court it seems only Magistrate Garnett releases his judgments for public scrutiny. The decision of Hemingway v Hamilton  VMC 10 probably made it into the paper because of the on-line publication. (Despite a game attempt by the media to keep the story going there’s nothing surprising in the decision).
If Magistrate Garnett keeps publishing his decisions he’ll soon be the most quoted magistrate in Victoria – apart from Magistrate Crisp, of course.