I think these reasons should stand to keep it freely available for all.
Forest Voice is freely available on the organization's web site.
The mission of the foundation is to make education freely available to all.
Much of the material is freely available to the public.
Now they have been made freely available for reading online.
The site www.underground-book.net has the book freely available in electronic form.
Through these organizations the technology was made freely available to the whole world.
The program is freely available if you do not already have it.
This work was first published and became freely available on the Internet.
Most goods were freely available in the early years of the war.