Wiki is a completely system feature and a module in UNA and by far the one with most potential. There will be more modules made around the system wiki tooling, too. AlexT Is writing a manual now, so we will be posting more details about it, but in a nutshell it’s a way to create any type of structured resource repositories with collaborative editing and versioning. It also has its own URL composition, outside of the usual UNA  /page... model  

For example, you can create things like:

• HELP section with URLs like domain/help/xyz with user tips, FAQs, tutorials, etc. Media can be embedded  from other site modules using Macros.
• DOCS section for a product documentation with collaboration tools.
• LIBRARY for educational projects pulling together links, texts, attachments, etc.
• NOTEBOOKS for personal free form note taking.