BFalcon said:
That's fair enough - but I feel self concious if I just poach files and don't contribute, either in discussions or in the files themselves... but then that's probably just me.
Not just you, but not everyone, either. A lot of us *like* to write, concoct, draw and display our efforts for the benefit of others. When I had a site up, I liked the occasional feedback, but wasn't ready to host active discussions. Of course, we had GEnie and the early MLs, then CotI and SJG, then here, and now other fora, for that.
As for the opening up of the forums to other games, I suggest you make it clear to people that they leave their grievances with various publishers at the door - or you could have violent arguments where some are concerned - just about every roleplayer has at least one publisher they would like to see bite the big one... I, myself, reeeallly detest D&D 4E, for example, so it would be a good idea to discourage discussions about it and confine the forums to discussions on the materials.
Of course, you can always have a "mosh pit" forum area where people are allowed to vent and put a discretionary advisory warning on it... I've seen that done and it works well sometimes to relieve tension, but it can also lead to a few hurt feelings (although less than a general forum argument does, I think). You'd only need to remove anything that was illegal, used excessive language or defamatory to the companies themselves you do need to cover yourself legally, I think - just in case).
There are big generalized games fora out there, but none of them has that generalized coverage as their big selling point. The most successful are at least somewhat specialized in their success. One example is EMWorld. They cheerfully host any and all RPG discussion, but anything but D&D is just mutterings around the edges. Quite a lot of the company specific miniatures fora will have a side area for "everything else", with the benefit that like-hobbied people can discuss just about anything without diluting the company's presense.
Traveller, like D&D, has fallen into a realm of over-specialization. This is due to a combination of extremely partisan reactions to each and every edition of the games, and to how different those editions are from each other. The partisan divisions have been running deep and hot within Traveller since the launch of TNE, but started when MegaTraveller launched. Without going into the specific causes (to keep this on-topic) the result is dozens of specialized MLs, a separate forum (or more than one) for each edition that has been in print within the last decade (most of which claim to be edition blind but often have partisan leanings), and (at one time) a veritable ocean of individual resource websites. Back to those later.
What does Traveller need in the context of this discussion? The combination of file storage and discussion can be done in several mixtures. CotI does it, though their files area is frightful to navigate and takes a back seat to the forums and company functions. Yahoo Groups do it, but don't couple discussions to files; the two are separate functions within each Group.
General discussion is, I think, well handled by existing MLs and fora.
Facebook and Google+ are all discussion and no file storage beyond images, so they're out.
Break CotI's files/Gallery section out by itself, or emulate CMoN original Gallery function, or even DeviantArt, and you get about the right mix for a site that concentrates on contributed *stuff* and the discussion of that stuff. None of these sites appear to have really good cross-indexing, however. Ideally this kind of site can be browsed by contributor, topic, or "drunkards walk", and by text or visually.