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 the PRC on Chinese music and ritual, see
www.ritualsoundscapes.com (now mostly relocated to WeChat).

For Chinese music, see the CHIME site
http://yunglie8.wixsite.com/chime
—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.

For A/V material, David Badagnani’s YouTube channel is a useful resource, even if for my taste he buys too much into the whole “living fossil” shtick of the Intangible Cultural Heritage…

Useful journals on musicking around the world are listed here, including Ethnomusicology, the Bulletin of the International Council for Traditions of Music and Dance, Ethnomusicology Forum, Analytical Approaches to World Musics (see this post), and Asian Music. See also Ethnomusicology rocks!.