There are only a few wuxia blogs around. There are many ancient drama blogs but only a few wuxia blogs. Knew Wuxia Rocks and SPCNET by chatting about TVB and WUXIA.
A Virtual Voyage has news of Wuxia Series as well as a few reviews. You can read fans comments on Wuxia.
SPCNET has a bunch of Wuxia reviews as well as a forum
Wuxia Edge blog mostly about Mainland Wuxia.
Wuxia Rocks Fanpage updates about Wuxia on his fanpage