Our tool is Open in the sense that access to it for teachers and students is free. The reason teachers and students can't sign up right now is we're in closed beta.
How free is free? Do they submit resources that only you can own the copyright to like IMDb does? Can anyone not an official student participate allowing public education?
How are you going to fund maintenance with no clear business model?
How are you going to fund maintenance with no clear business model?
I hope it doesn't discourage you!