Escape virtual prisons 

Totalitarian regimes censor websites out of fear of the truth.  They effectively imprison the people under their rules in the online world.  The most notorious virtual prison is the Great Firewall (GP) in China. This website has finally accumulated enough truth to get on the "honor roll" of the blocked or partially blocked websites.

Fortunately, people yearning for the truth naturually, and they create and find ways to escape virtual prisons to access the truth.  There are a few well established methods to escpate virtual prisons:

1. Ultrasurf
2. Tor Project. 
3. Dynaweb.
4. Garden Networks.
5. GPass.

 A blog post shows a few services to check a website's accessibility in China:

• Nimsoft
• WebSitePulse.