On Thu, Sep 3, 2009 at 10:26 PM, Aryeh Gregor
I don't know how formal or authoritative that is. You might want to
ask someone like Brion. I think the answer in practice is that
nobody's going to waste time blocking you if you don't cause
noticeable load, but I don't know if there's an official statement
anywhere. I vaguely recall that some sites might pay Wikimedia a fee
to do commercial live mirroring, but I'm not sure on that.
AFAIK one of these is spiegel.de which gets some kind of live feed, they
arranged it with WM DE.
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