FacetWP demo

This is pretty cool stuff (in this case, available from FacetWP), and we use stuff like this and can easily incorporate it into any website where it is merited. To use a module like this, it is recommend you have at least 12 to 16 items, each of which can be categorized in at least 2 different ways. For example, color, make, model, year. Or, if you were categorizing birds, for example, habitat, size, prey, location, and so forth.