Topic maps
A topic map is basically a visualization of connected concepts. Concepts could be locations, brands or even people. A topic map are these concepts structured via associations. Define any number of topic maps and each topic map can have any number of concepts that are associated.
Multi dimensional navigation
Use topic maps to build multi dimensional navigation.
Associations
Using topic maps you can associate any product or document allowing you to link together items like blog posts having the same topics as a product.
Search filtering
Use topics to quickly find what you are searching for by filtering by topics.