1) I am new to this list so, please forgive me if this is the wrong place, the wrong topic, the wrong anything for the following:
2) I am developing a series of mathematics texts under a GNU Free Documentation License available at freemathtexts.org
3) It occurred to me that they may offer a contents base for a wikibook.
4) As the project described there is far from being completed and still awfully time-consuming I am quite unable to do it myself but would be quite happy to grant permission if permission is needed or whatever.
Regards --schremmer