I am a bit confused. I know PRINCE2 was released to be public domain in about 1990 but then I wonder why I cannot find any site (apart from prince2 wiki) with its content?. Also, what is Axelos then an owner of - just the certification programmeprogram? And what about PRINCE2 Agile, I thought that was developed by Axelos so that would not be in the public domain, I assume?
EDIT: On their website, Axelos mention (in Case Studies):
It is public domain, available for anyone to use to manage a project, it can support the many requirements of CCA and CPIC, and it can be tailored to fit most any size project.
If I now understand it, then Axelos owns the PRINCE2 certifications + all materials they create, of course. But PRINCE2 itself is still in the public domain.