As noted above, vintage-trek.com is a completely non-Trek affiliated enterprise. It is one of the category killer sites in that if one is curious about steel Treks from the 80's and late 70's, it is the place to go. It is also a granddaddy of vintage bike sites, having been around for a number of years and is really considered authoritative.
The owner/maintainer of the site is Skip Echert, who is very responsive to emails. If you want/think the scope of the site should be expanded, Skip would likely be happy to discuss this with you via email.