This is an interesting site being developed by Red Hook (Brad) of the CGC Message Boards. It's in the beginning stages, but looks very promising. I've sent Brad scans of my 2 Green River books -- Thor 149 and Superman Annual 7. I'd love to see this type of information available on more pedigrees.
Zarelli Space Authentication
Steve Zarelli Space Authentication provides professional and accurate authentication of astronaut and aviation autographs.