From China Digital Space

功夫网 (gōng fū wǎng): kung fu net

In Chinese, the first letter of each word in “kung fu net” are GFW. GFW is an abbreviation of “The Great Firewall of China.” Thus the kung fu net is the internet as it exists after it has been kung fu-ed by the Chinese government.

Note: all the logos that form the letters in the image above relate to websites that are restricted or banned in China.