How to Circumvent Web Filters?

From American public high schools to Internet cafes in China, many networks have web filters to block content. Reasons for blocking websites can range from preventing children from viewing pornogra... Read More »
http://www.ehow.com/how_6571467_circumvent-filters.html

What does it mean to circumvent encryption or scrambling devices?

How can I circumvent the governmental blocks on YouTube, Facebook & Blogger while I'm in China without a VPN?