SLAB (20% off your first 3 months)
I love Slab. It’s super intuitive and does exactly what it needs to do and not all the other stuff. It’s a wiki that doesn’t feel like a wiki and the ability to make pages and sections public versus private is great for sharing docs or even multi-page guides with clients. It’s also not expensive. If you are not documenting how your business works it will never scale. Use Slab!
Here’s the link: http://slab.com/r/z3mnbsdi