Many years ago (pre-internet popularity), a young woman started the Wiccan/Pagan Press Alliance (WPPA). The goal was to establish communications between writers and publishers of books, magazines, and newsletters so that people could share ideas, successes, and challenges. I encouraged that woman to write a book, and she eventually did so. Her name: Silver RavenWolf.
Many of those newsletters and magazines are gone, now, replaced by new websites that allow for more and faster communication. But there hasn't been a real replacement for the WPPA. However, I think the Pagan Writers Community may be providing just such a service to the community.
It says on the site that
…the Pagan