Egon Schmid wrote:
> To make the story short, it isn't allowed to earn money with other
> peoples work.
no, it is not allowed if the creator didn't give you
permission to do so, which the e.g. GPL definetly does
as long as you stick by the rules
- do not change the copyright
- provide sources on demand (and without putting additional
fees on this other then handling/shipping) to everyone who
has your compiled version, has not violated the license
himself and asks for it
- do not put limitations on further distribution of
sources and binaries
not a single word about not making money from it in the GPL
besides that you must not make *additional* money from giving
the sources to whoever rightfully demands to get them
the GFDL (GNU Free Documentation License) you suggested yourself
is based on the very same idea, but is a better fit for documentation
than the GPL which concentrates on 'source' and 'binary' and
has some other extensions required by laws in the publishing
area which do not apply to sourcecode
please have a look at the preamble of the GFDL, it clearly says:
0. PREAMBLE
The purpose of this License is to make a manual, textbook, or other
written document "free" in the sense of freedom: to assure everyone
the effective freedom to copy and redistribute it, with or without
modifying it, either commercially or noncommercially. [...]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
http://www.fsf.org/licenses/fdl.html
(german translation under
http://nautix.sourceforge.net/docs/fdl.de.html)