This module is an exporter for SIOC (Semantically-Interlinked Online Community) metadata. For more information, see rdfs.org/sioc.
When browsing nodes or comments in forums or blogs, you will see links to SIOC metadata on the menu (e.g. "sioc forum", "sioc post") which will bring you to the corresponding metadata export for that item.
You can begin by viewing metadata about this site.