Dave Snowdon’s Cynefin Site
Here comes the introduction into Cynefin by Snowdon himself: http://cognitive-edge.com/videos/cynefin-framework-introduction/
Roman Pichler’s Blog
Roman is author of the book “Agile Product Management with Scrum” (which is a recommendation on it’s own, Amazon Partner Link: https://amzn.to/2J4pado), speaker, and active blogger.
Ken Schwaber’s Blog
Well. It is Ken Schwaber.