Hubbing & spoking works like mind maps (think http://mind42.com) with terms in each little box branching off to spokes. Inside each hub and spoke is a hyperlink that will take you to a specific part of the FAR.
Other examples of this are:
- Music Map - http://Music-map.com
- Musicovery - http://Musicovery.com
- Hub and Spoke - http://en.wikipedia.org/wiki/Hub_and_spoke
Essentially, this is another way to organize and learn the FAR. This is handy because different people work better visual organization while others work better with text organization (like the current FAR).