Jo Graham has written up a nice little commentary for the epilogue to Hand of Isis, one of my favourite books. It adds so much to the understanding of this section of the book. And what's more, in the comments she's expanded on the number of the books in the series, as well as giving a short (very short) synopsis of some of the time periods the stories will cover. I have to say, I really hope the books will go out to the publishers. I love this world.
The other commentary currently there is:
Hand of Isis: Mikhael
Jo Graham also includes short stories and deleted scenes from her books on a regular basis.