... Will be discussing ghosts, necromancy, the cult(s) of the dead, and probably Goetia (we'll see how deep we get into that subject) on September 18th on Wyrd Ways Radio (Ms. Krasskova's podcast).
I hear there's some sort've drama about the subject(?), but I have no idea about the specifics. I also probably don't care about the specifics, so there's that.
As folks were asking on Sannion's comment thread about book recommendations, I thought I'd point out that I have an entire entry of links to sources I consider 'worth reading' here. Typically I would recommend reading Melitta's blog over anything in my own, but she recently departed from our circles for green pastures and pursuit of her own destiny. (And, I would add, I wish her luck on her path and still adore her - even if I am now lacking folks to have lengthy discussions regarding ghosts'n'stuff.)
If we have time, we may even discuss Spiritism. We'll see how that works out!
As a reminder: I am not an expert, scholar, or authority on any of these matters.