This article discusses the different ways to access content that is blocked, down etc on the Internet. I'm not 100% sure if this would work around the Mandatory Internet filter in Australia though! But interesting read.
10. Skip Past Annoying User/Pass Requests
9. Read Articles That Rupert Murdoch Wants You Paying For
8. Change User Agents to Get Around Browser Blocks
7. Get to Gmail When It's Down
6. Get Actually Usable BitTorrent Speeds
5. Get To Sites Taken Down by Traffic
4. Control Computers At Home
3. Download YouTube and Other Flash Videos
2. Access Country-Blocked Streaming TV
1. Roll Your Own Proxy to Access Blocked Sites