I speak Mandarin & Cantonese in my daily life. They are both Chinese, but I thounght them are different languages.

The majority reason why Chinese gov. doing this is just want to make sure those websites won't contain any bad things.

If you do have bad things on your website........then gov. gotcha

A Chinese guy named Li Guowei, CdrPlum founded that site, he also translated slashdot's source code "slashcode" into Chinese. Lately, that site was sold to CNET.
Most stuff on that site is just a copy of slashdots' which translated to Chinese. But, still there is something from some other Chinese sites.

well, here is China's version of /. http://solidot.org/