I am building a product for web developers and designers. Good, clean documentation will be an important element in providing a great experience to our customers, so I'd love to know what you think are some of the most functional and best designed documentation pages that you've come across.
Interesting! I never thought to look at style guides for inspiration when designing a documentation page, but at their core, the two are quite similar. I'm not sure if that's what you were getting at but I'm going to take a look at some other style guides as well. Do any other companies publicly share them?
Yes – you got it. There are many excellent ones out there to glean from, perhaps even Designer New's itself: https://layervault.com/layervault/Designer%20News/styleguide
I really like http://devdocs.io/
My favorite: http://getbootstrap.com/
I actually really like the look of http://docs.harmonyapp.com too. It's kind of different from most other documentation that I see, but in a good way.