Two months later ... and I found out today that the essay I referred to in this post (which grew to about 7,500 words before I actually submitted it) has been accepted for publication by the Internet Review of Science Fiction !!
This is really exciting, not only because I had a blast writing the piece and now everyone else will get to read it, but because this is the "biggest" sale I've made so far, and the IRoSF carries some really good content. Also, this essay is the most complex and "academically" oriented I've composed, attacking a body of work, rather than reviewing one specific title, from various angles.
Not sure yet of the publication date; as soon as I find out more I'll post the details.