I think if you're going through with this, it should be a site that similar to VNDB:
There's a list of games released. Tags are placed for each one, including whether they are free, commercial, demos etc. Genres, language, and that sort of thing. Players of the games are able to rate the games but also be able to drop reviews. I'm thinking like an IGN sort of thing, with an average rating in a visible place. That way, if there are picky players, they can choose which games to play depending on the summaries, reviews, ratings, etc.
At the end of the year, we could vote for VN of the year or something ^^ Like the Emmys
If you want it to host games, that's just a plus. But I think the use of mediafire, google, dropbox etc are fine.
You can offer domains to VN groups but there should be a criteria for that. Some people who begin projects don't follow through so maybe you should think about letting people with a game or two already released to get one. That way, it's more of a sure thing that they'll stay active. Also, you can use this as a way of advertisement. There's a main site, and floating around the corners could be the websites that you have hosted in advertisement form. So banners, buttons, etc, for the people that are hosted within your site. Or other websites that are dedicated to making games but are not under your domain can have their corner too. Most of the ads should be indie games I think. Help them get their name out there
Having the VN news on the same site is fine. Once again, I think that games with a defined release date or games with some considerable progress should be on the news, not just games that aren't fleshed out properly and are simply in speculation. I'd like it if I can look forward to a game and not have it ripped out of my heart the next day when they've decided not to go forward with it.
Just wondering: Is this a site where it's run by one person (or at least a group) or by the entire VN playing/making community? If it's a group, I think it should be a dedicated group of people (obviously) or maybe veterans of the VN scene, with many games on their belt (playing-or-making-wise). Letting just anyone run the website may be a good idea but then their sources must be defined (think Wikipedia) for their news to be credible.
We could always use lemmasoft if we wanted to. I mean, whenever I come to the website, there's a link to a page that's supposed to be the central site that redirects to the forums. I'm not sure what's going on there but if it's not going to be used, we could just turn that into the main website. Then it'd be connected to the forums, so people can go and check out possible games being released soon

That's just a thought I had.
Anyways, this is just me rambling on about possibilities. Just speculation on how the possible website could be like. (I just made a bunch of references to different websites. I guess what I'm saying is that all these websites should be somehow combined to fit the subject matter of visual novels.)
I have little to offer. (No money and I've got school :p) but I like the idea of organizing the website or contributing to it.