Hi guys-- I'm not dead!
My site was hacked. I spent a lot of time trying to remove the malicious content that had been injected, but every time I thought I was in the clear, I'd find another piece.
After a month of trying to eradicate the 'infected' sources without success, I decided to nuke the entire thing from orbit.
So yeah! I will be re-uploading content as soon as possible-- I apologize for the mess this has caused anyone who has linked to downloads on my site.