The original intent of .org was to be non-commercial. However, there was a myth going around a few years ago which said SEO favored .com, .net and .org. Therefore, people went into a rush to buy commercial .org names. However, nowadays, most extentions will rank worldwide, so fewer people chase .org Also, what do you consider non-commercial.? For instance, if you placed an adsense ad, but the profits went to charity, then wouldn't that be an exception?