Reiser4 FS Wiki:About
As the header states, quite a few pages are copies of the last working copy of the Wayback Machine from the original sources - the namesys.com site. However, as the time of writing (and since creation of this wiki, 2009-06-25), the original content is not accessible any more. As the pages were created, the first changelog entry usually lists the original source where the content was copied from (example: Reiser4).
Please refer to the copyrights page for details.