[Your book recommendation page] Seemed pretty awesome till I got the the last part. But seeing "A Field Guide to Otherkin" at the end just made me feel confused...
Regarding the inclusion of the Otherkin book in my recommendations... someone had asked me for information on that subject and this is the only book available on it (or at least it was when I read it).
At the time when I read it, I felt that the author took a semi-academic approach and it was sort of like an anthropological study on this subculture phenomenon. The author can't be impartial because she is a part of this community (I am not!), but I got the impression that she had the academic education to understand how to study and document her observations. It's been about two years since I read it, I had come across people in the Otherkin community online and was curious.
But I am considering Otherkin a contemporary folkloric/anthropological subject. If you really wanted to get down to it, alien sightings and abduction stories are considered by many as our contemporary folklore and some scholars have noted similarities between abductions accounts and people who were taken by the fairies. Remember that fairies were actually frightening and very powerful beings, not foofy and whimsical, people feared being taken by them. Some have made the analogy that aliens are the equivalent of fairies in our culture today.
I don't have a problem with the theory, but I don't really explore it because aliens are just not interesting to me. Otherkin are interesting to me. But it's so underground most people have never heard of them and many who do think it's ridiculous. I have an open mind and think anthropologists and folklorists should look into it (maybe psychologists too)
Anyway, looks like it has gone out of print and the Kindle version is no longer being sold. Used copies are selling for $200! So, now there is even less information on this topic out there :-/