If you're interested in narrowing the location to just sydney - there's a growing FB group called "Sydney Startups" (https://www.facebook.com/groups/sydneystartups/) and a related monthly newsletter which features Sydney Startups -> sydneystartups.com

Here are some blogs:

http://www.startup-australia.org/blogs

Not sure how current it is. There's also:

http://www.startupsmart.com.au

who have posted a few stories here and anthill which does a lot for the AU startup scene.