http://www.cc.com.au - my business: events, web services and open source consulting
http://cafuego.net - Peter's blog.
http://drupal.org - Drupal! My community :)
http://drupalwatchdog.com - Technical Journal for the Drupal community produced by Tag1 consulting.
http://tag1consulting.com - Tag1 Consulting - Web scalability and performance experts.
http://openinventionnetwork.com - The Open Invention Network - world's largest defensive patent pool.
http://www.catscratch.net - dusty archive from last century.
http://linux.conf.au - linux.conf.au is the world's greatest linux conference
http://www.osv.org.au - whilst I've been a linux user for a long while now, it wasn't until I found out about OSV in 2004 that I got involved with the community.
http://www.osia.com.au - Australia's industry association for all things flossy - the business end of the community.
http://www.linux.org.au - the community end of the industry, and custodian of linux.conf.au
http://www.luv.asn.au - Linux Users of Victoria - pretty hard core tech geek pack.