There are quite a few gaps in Guvnor's documentation.
Here is a list https://docs.google.com/spreadsheet/ccc?key=0AvNo0onpk9PedG5hSkRsU3kxRUQ0SWtZZ25KUWZjaFE&hl=en_US#gid=0
I've assigned some sections to people - Rikkola, Jervis, Tihomir, Geoffrey, me, Estaban\Salaboy (if the area is something you developed and can write a few lines?).
The ownership column represents how is to document, not who owns that part of the application.
Please feel free to have a look and update any section :)
With kind regards,