I don't know if this is the right place.
If not, feel free to put in the good topic.
The website, with some info about spectre is gone.http://www.geocities.com/clu-da-bard/spectreatari.html
I contacted the author, and he told me that he has all the content, but looking for someone to host it.
Maybe it can be incorporated in wiki.
I think its good starter for the emulation items.