Did a quick google search for suitable on-topic Australian blogs to include in a blogroll.
At this stage, key words are: retro, vintage, collectable, fashion
Here are my finds so far. The search goes on ...
Circa Vintage Clothing
On the international scene, this one has very readable, well-organised vintage clothing feature posts.
Vintage Fashion Guild
Queens of Vintage
If you visit here, add any Aussie blog on-topic you know of, please.