There seems to be a lot of interest again in this newsagency case since Lexology, the major legal site for the world's leading commercial law firms, published a new article on this case Nextra Australia v Fletcher.
The article is available here in the orginal, but I noticed that it is widely circulated in such publications like the Franchise Bulletin here. This is actually where most newsagents are reading it.
What the is saying is that if you do run a social media even in only personally it may have a *commercial* character and as such breach Australian Consumer Law. If you do have a personal Facebook page, blog or twitter account, or if you are thinking about starting one, it is worth reading this article.