What do you mean by tagging? By faceted search? Can you show me/give me an example of how this is used?

“Tagging” allows a site administrator to associate a piece of content with a specific term. The term is then leveraged in a way to allow a website visitor to find the type of content they might be looking for or a way for the administrator to better organize their content. In OpenScholar we call this system,i taxonomy.

A faceted taxonomy is the ability to filter even further into the content created. For example, if all Publications were tagged with the country related to the topic of the publication, you can also allow for site visitors to search within the country for a County and then inside the county they could search for a town, etc. This allows the site visitor two more specifically find the content they're looking for.