As for Charles and Alan -- they approached me about having their blueprints represented on the site - as have many other illustrators.
More to the point... I don't think that they have ever tried to sell their work (and neither have I for that matter)... so your site sure hasn't hurt sales
Besides, it has been around long enough that I doubt anyone is worried about it not lasting
. I'm surprised that it isn't better known, as it is one of my favorite Trek sites.
Huh, well, I have been lurking here for at least 2 years and don't remember seeing anything about the site before.
When ever I reference any of my finished works, I link to them on that site (such as here
). It is a great resource in my opinion.