This short text defines the conditions of copy for all the pages in my site.
My intention was originally to use the GNU Free Documentation License or the Creative Commons, because I saw them used for some books, but I never found the time to read them.
So I wrote the following notice:
This text was written by KiyuKo (http://www.kiyuko.org)
Copying and redistribution of this text, as a whole or only in part, in any
form and with any medium is allowed if not for money and provided this notice
(or the reference to it) is preserved.
Obviously I'd like to be advised when you use a text taken from this site, but you are not obliged to let me know you used it.