Useful sites for Chinese religion are
http://home.uni-leipzig.de/clartp/bibliography_CPR.html
along with this network:
ensrc@lists.uni-leipzig.de
and Barend ter Haar’s site
https://bjterhaa.home.xs4all.nl/index.html
Mostly in Chinese, note the journal Minsu quyi 民俗曲藝 (introduced here), and more recently, the Center for the Study of Chinese Religions at the Southwest Jiaotong University in Chengdu, with its online newsletter Shenzhou studies 神州研究.

A fine site for modern China, including religion, is
ian-johnson.com

For the anthropology of religion in China, you can’t beat the oeuvre of Adam Yuet Chau: http://www.ames.cam.ac.uk/directory/chauayuetchau (and links to pdfs there).

For some of the excellent work going on within China on Chinese music and ritual, see
www.ritualsoundscapes.com (inactive recently, but worth pursuing).

For Chinese music, the CHIME site
http://yunglie8.wixsite.com/chime
is currently in abeyance, and much in need of updating, but all issues of the CHIME journal are available there—I reflected here on the changing scene.
For the oral and performing arts, see also the CHINOPERL website, introduced here.