I looked at the links you guys posted. While Jaws 3D is indeed available on Sensio 3D, the anaglyph version isn't out on DVD, AFAIK. Wouldn't the Anaglyph still be worth anything to those without the rather expensive Sensio Systems? If so, can I still upload an anaglyph AVI, or would that violate site rules?
On a side note, Comin' At Ya is indeed available in Anaglyph 3D officially. So, it doesn't fit the qualification of "Unavailable on Official DVD in 3D." I've removed it from the list up top. You can get it right here:
http://www.amazon.com/Comin-At-Ya-Tony-Anthony/dp/6305564345/ref=sr_1_1?s=movies-tv&ie=UTF8&qid=1321937630&sr=1-1
While the article you linked to Moth3r mentions a release of Creature From the Black Lagoon in 3D, I can't find any information that they actually went through with a release... so I assume that makes it safe for preservation.
As it is, I'll upload Creature and Starchaser in Anaglyph 3D to anyone who wants them. I will post when they are ready, please don't PM me before that. In light of the genuine release, I'm not sure about uploading the anaglyph version of Jaws 3D.