Recently I decided I wanted to try and collect all, or as many as possible, back issues of The Entheogen Review.
I was able to find an issue or two at Amazon then I found this website,
entheogen references, which looks promising and reasonably priced.
I would really love to find someone selling every back issue together but someone how I doubt that will happen.
I'm also curious if anyone here knows of any other good sources for literature and reference material, especially ones in which the proceeds go to benefit entheogenic research. If only Maps had better selection then I surely would go there.