As discussed today in the Cat and Class business meeting
The Library of Congress is investigating using the inherent access and linking functionality of the Library of Congress online classification system as a finding tool for web resources, taking the KIA, the new Law Classification for Indigenous Peoples in the Americas as an example. KIA works particularly well for this, since it is jurisdictionally based (allowing searching from an online maps -- very cool), and since many of the resources organized in the schedule are not published in traditional formats but rather available only through websites.
View Dr. Jolande Goldberg's poster on the new possibilities for classification schedules as reference tools here, in PDF. She will present it at the 2009 National Conference of Tribal Archives, Libraries and Museums to be held this October in Portland, Oregon.