With GitBook you can create your business or personal documentation. It supports custom domains and is hosted. That means you don't have to install it anywhere.
$0-$15 /month (per User)
GitBook is a very powerful and well designed Documentation tool. It offers features like:
- Connect a custom domain for free
- Make pages and sub-pages
- Information, Warning, etc. boxes
- Merge changes
- Multiple docs on one domain
None currently available.