The Freedom Requires Wings blog has an asexual spectrum section that features blog posts by asexual, demisexual, and grey-asexual authors. There are some interesting and useful reads there, and they are frequently looking for new contributors.

For those who are interested I also published a paper exploring the the asexual spectrum and American law and culture (it was for a Sexual Orientation and the Law course at my law school). That paper, What Do You Mean You're Not Interested in Sex?: American Life and Law from an Asexual Perspective, is available for free via Smashbooks in a variety of digital formats.