New changes of David Yin's Blog

I changed my blog's category name from Chinese to English. Divided one category to Software and Hardware.
The next step of change is to make the blog to two parts or two blogs, one for Chinese, one for English. I want keep the readers of my blog clear, not confuse them by other language.

These two blogs will be updated very often as before.

Updated: The new Chinese blog is located at FreeThinking