It's still at a very early stage, but since I can't see any alternative at the moment I'd like to announce that I have established a wiki to write a user's manual for OpenGoo.
At the moment the wiki is running on my own server. If the developers of OpenGoo (I'm not one of them) would like to take it over at a later stage, I'm open for discussion.
I already wrote a couple of pages, and there is a rough structure for the whole manual, but there is still a lot of work to do. I prefer to continue this work on my own for the moment, since I'd like to give this project a better foundation where it can grow on. This includes refining the structure and establishing some editorial guidelines. But I'll be happy to accept contributions at a later stage.
OK, that's all for the moment. If you're interested, please check it out at
http://www.liveserver.ch/opengoo_wiki/doku.php and let me know what you think.