OSS funding and documentation quality are problems I think about semi-regularly. A few questions I have are:

1) Is the model of keeping software open but education material closed a necessary compromise to fund the project?

1.b) If so, have you explored other funding models that weren’t viable?

2) How is the experience of publishing through OReilly? Do they take considerable profit shares? Do they provide editors, advertising, and/or other valuable services? Essentially are they worth it?