Hi Florian,

2013/5/19 Florian Jung <florian.a.jung@web.de>

please tell me all about how this site is hosted.

Joachim seems to own the domain. But has anyone of us access to it?
Where is the muse-sequencer.org site hosted? Who has shell access/root
access to this server? Who has access over a (which?) administrative web

Do we pay for this? How much? What features does the hoster offer? What
limits do we have?

Joachim owns the domain and runs the service. We do not pay for anything, as he put it at some point, it is his contribution.
As for limitations I'm not sure, is there anything specific you would like to explore?
Also, I have ssh access to the web server.