I am experimenting with a web app to publish more textbook like knowledge here: http://www.bookvoid.com/ http://www.bookvoid.com/ Not many takers up to now th

I am experimenting with a web app to publish more textbook like knowledge here: http://www.bookvoid.com/ http://www.bookvoid.com/ Not many takers up to now though. Any feedback (especially harsh and constructive one) would be appreciated.