(1) I'm an editor on Wikipedia where I have worked on 9/11 articles there for 1 1/2 years. There are dozens of articles on the topic, with a significant portion of my time spent on the talk pages dealing with conspiracy theories, but we also have managed to improve the articles in my time there. The articles still need quite a bit more work to make them "featured articles", which is what we use to denote the best quality Wikipedia articles. We can always use more good editors. The requirements are to adhere to NPOV, make sure your edits are well-referenced from reliable sources (e.g. prisonplanet is not acceptable), be civil, and adhere to other rules.
(2) My own site, except for the front page, is entirely a wiki. Each "topic" is a wiki page, with the wiki features only accessible and visible to people that log into the site. Accounts can be set-up on request (send me a PM) for people that I trust.
Why the site was created?
The site was created ~6-7 months ago, growing out of my work on Wikipedia. The site is a place where real progress can be made on putting together quality pages on various 9/11 topics, without dealing with vandalism and conspiracy cruft nonsense that happens on Wikipedia.
(a) There are particular conspiracy theories that come up time and again on Wikipedia. I needed a place where I can have material put together on each of the theories which I can refer back to at a later time as needed. The page about
Osama and the FBI poster is just that... a collection of material I found while dealing with a truther pushing that theory on Wikipedia. It's there on my site, so when the issue comes up again, I don't have to waste time searching for the material again.
(b) I have also used the site to gather information on topics and build material on more general 9/11 topics, some of which I then use in working on Wikipedia articles. If you compare Wikipedia articles with pages on my site, you may find passages of text that are very similar that might appear to be copyright violations. They are all my work and not copyright violations. Recently, I have been gathering material about
Mohamed Atta which I will then have available to go improve the wikipedia article about him.
(c) My site can go into more depth than suitable for Wikipedia. (e.g. use of
cell phones on airplanes)
(d) The site can be a resource for putting together summarized material, such as a binder or one page handouts, that can be used on Saturdays at GZ whenever I show up, or at the White House, or anywhere else I might show up.
(e) When material on my site and on English Wikipedia gets up to "featured status" quality, it will be useful for then spending time on other language Wikipedia sites. (particularly Spanish and Arabic, which are languages that I have some ability) I just looked at the Arabic article on the 9/11 attacks again. It really hasn't changed much, but I'm quite amazed that someone has just nominated it for "featured status" there, even though it is full of poorly sourced material, inaccuracies, and major omissions (the article neglects to mention Flight 93).

Since I have had my site up and since I joined JREF 6-7 months ago, I feel like I have made significantly more progress on both my site and on Wikipedia, than in the year before that I spent only on Wikipedia. I have worked more consistently on my site in the past month, whereas before I had been working more sporadically and taking breaks from it. I'm on an "improvement drive", spending extra time on my site now before my Arabic course starts in a few weeks. I'm on Wikipedia pretty much every day, sometimes very busy with 9/11 issues and other times the issues subside and I can do other stuff on wiki.
Though doing things on my site, on my own has its advantages in making sure I know all aspects of all topics very well. It's all a big, time consuming project that could go faster with some help. A few months ago, I did hand out accounts to a few folks that expressed interest. Nonetheless, it's mainly been just me working on the site. I think the wiki functionality and interface was too difficult/confusing for others to use and too hidden. I have spent time to change that and it should be much easier for others to use now.
We set up an "
Index to Conspiracy Claims" page, which is presently linked on the "Miscellaneous" page. It is very much a rough draft with incomplete sections. Because of that, I don't have it linked more prominently. When it gets filled in more, it can replace the "All topics" link at the top of my site.
The front page of the site is managed separately with blog software. Unfortunately, I haven't the time to update it more frequently, but it can be a place for announcements, highlight items "in the news", or whatever.
If this project sounds like something you want to help with, just send me a PM. You can help with whatever aspects of the site that interest you.