I personally fail to see the benefits of .org over .net, it is in fact a poor clone of .net, looks the same and feels the same, excepts it lacks a good front end, which in fact.net has. Yes this will be down to development time, and i am sure in the near future it will have the same bells and whistles as .net.
The only benefit is in that it is being run by enthusiasts, and i am sure that at the beginning Tim Cullis was an enthusiast, but hobbies fall by the way side and i am sure the same will befall .org at some time in the future.
The question is when...........
Although it appears .net is not driven by an enthusiast at present, it is most certainly the most comprehensive knowledge base on the Z3 currently on the web, until .org can take this mantle, it will always be the poor relation.