At StackCommerce, we currently host our internal private wiki with Github Wikis, and I've been trying to find a good way to organize it in a way that visually makes sense, i.e. how to utilize sidebar content and page content effectively.
I've tried looking for more discussions around wiki structure for inspiration outside of the world of open source (which doesn't quite fit our needs currently) and I haven't had much luck.
Right now, we have a few main sections such as 'Documentation', 'Engineering', 'How-To', 'QA' and 'Product Specifications', but not every sub-section is organized accordingly.
TL;DR--Do you use a wiki at your company and do you find that it's organized well? What makes it work for your team?
Any tips would be appreciated!