DigMandarin offer several interesting resources for free. The blog is a mix of directly useful resources, such as vocabulary for certain situations, and information/inspiration on learning Mandarin... Read more.

digmandarin.com

A Chinese discussion forum / social news site with discussions about almost everything. Good for reading about your particular interests or perhaps even participating in the discussions yourself. Read more.

bbs.hupu.com

"时间都去哪儿了 has been popular recently, especially since it was performed by 王铮亮 (Wáng Zhēngliàng) on 春晚. I thought I'd have a go at annotating it in English." Read more.

eastasiastudent.net

This blog post contains both a list of most of the elements in the periodic table in both Chinese and English, but more importantly, it contains a discussion about the characters used to represent ... Read more.

languagelog.ldc.upenn.edu