FacetWP adds advanced filtering to any WordPress site. It’s ideal for allowing users to quickly and easily drill down through your site’s content. You’ve seen this kind of filtering, also known as “faceted search”, on lots of popular eCommerce sites, like Amazon and eBay.
Now it’s possible to add to WordPress sites. Faceted search can be added to any section where lists of content are being displayed. This includes eCommerce product listings, resource libraries, search pages, automotive part finders, online classifieds directories, and more.
If you have a large data set that can be made more usable on the front end by filtering by various criteria, this plug-in is your holy grail. Heck, even smaller amounts of data are more fun and usable when they can be dynamically filtered and sorted with the click of a control.
It offers several different control-widgets, and work brilliantly on custom post-types. Turns your flat post-data into a dynamic, AJAX application.
Great plugin, really easy to use. Tons of options, but super user-friendly. Excellent support as well in case you have questions.