I started this community a few years back and I'm afraid to say, didn't keep up with it as well as I'd planned.
However, I am still getting membership requests. There is obviously plenty of interest for reference photos, with the copyright waived by the photographer - for non commercial art purposes only. (By non-commercial, I mean that the photographer is perfectly happy for their images to be used as a reference for artists. If the artists subequently sells a painting made from that photograph, that's fine too - however, permission is not given for these photographs to be reproduced and sold as photographic prints, or used for such commercial ventures as logo design.)
So I'd love to hear if there is still enough interest in this community to maybe start it moving again?