Mission:
"Explain useful ideas as directly as possible with no attempt to persuade or impress. Get to the point and try to be helpful"
The site is full of lists / categories / examples that can be used as framework for managing and understanding buisnesses, relationships.
I come back to this site every so often, yet no one has shared any of their articles here on HN so I linked the main page. I forsee (and hope) their articles being shared here