The difference between "non-profit" and "not-for-profit" is that there isn't any difference. Again, I can't speak fopr Mudcat, but The Digital Tradition Inc. has been running at a loss since its inception in 1988; doesn't solicit contributions (but will accept any, gratefully), and never expects to break even, even if we value labor at zero, I have a business--CAMSCO Music--that is independent of Digital Tradition, much in the same way that Onstage Media was (is?) independent of the Mudcat Cafe.