Here is a recent article, “Prejudice Against ‘Group X’ (Asexuals)” by Gordon Hodson and posted on AVEN Digest Oc.t 8, which I think would quite interesting to follow up on, as Hodson mentions near the end of his article. He also lists some good references and further readings at the bottom of the page, which includes two of Bogaert’s articles. I will be following up with a review of Bogaert’s book as soon as I finish it. I purchased the Kindle edition for about $28.
I also found a Bundlr page: An Introduction to Asexuality which has links to some good references, especially for “101” materials. Just had to share!