Drupal 7 status: There are no plans to port Faceted Search to Drupal 7. More info.
The Faceted Search module provides a search API and a search interface for allowing users to browse content in such a way that they can rapidly get acquainted with the scope and nature of the content, and never feel lost in the data. More than a search interface, this is an information navigation and discovery tool.
The interface exposes metadata in such a way that users can build their queries as they go, refining or expanding the current query, with results automatically reflecting the current query. This interface also combines free-text search, fully leveraging Drupal's search engine. It avoids complex search forms, and never offers facets that would lead to empty result sets.
In an effort to minimize the duplication of jcarousel based modules this module is being deprecated for the Drupal 6 version onward and is being replaced by the