If there was an epicenter of the Christian Tape Underground, it would be Jeani Bond and Key Records. I wasn’t part of the actual scene back in the 80s and 90s, but from what I understand, she was one of the “key” people in promoting so many obscure tapes with her Regeneration Radio tape show and distribution efforts. She continues to promote this music to this day. If you are not familiar with her, you can get a good overview with this podcast interview she did recently with The Antidote:
http://www.theantidoteradio.com/interview/interview-with-jeani-bond-of-key-records
Then, of course, there is her website – which still has a lot of rare music for sale:
She also keeps a large archive of tape and zine and related miscellany on her Flicker account:
https://www.flickr.com/photos/keyrecordsarchive/albums
Last, but not least, there is her radio show archives (with tons of rare songs):
http://jeanibond.com/radioshows.html
and her current playlist on SoundCloud with even more music:
