Dear creativetalk,
It is good initiative.
I would like to suggest something to you that would make your initiative even more rewarding and create good traffic to your site by providing the following contents to be downloadable from your site.
List of contents
This would put your site with hundreds of useful contents for reference not only by Japanese users but globally as well.
Now on top of that, we would pay you too should any registration results from your giving away our free tools and contents.
Check out our offerings at
Paperless Homework closes digital divide for greener world and
Our reward system at
www.foohokok.com Free Homework tools for schools, teachers and students 
We are giving these contents plus more to come
free for an entire year to ALL schools.
So when students copy them
(which we welcome), you would get a lot of exposures to your site when students return to get more modules which we would update regularly meanwhile generating revenue from advertising (google adsense) plus commissions from registrations.
Further those sites pariticipating in our initiative would get a link back to your site. This would increase your page rank. Our current ranking now is 4 and increasing fast.
Those interested may contact us and let us explain to you more details.
Regards
Alan
Paperless Homework closes digital divide for greener world