http://www.preservationnation.org/issues/historic-schools/
The National Trust for Historic Preservation focuses on historic neighborhood schools with a comprehensive overview of issues, success stories and case studies, state policies, and school facilities, restoration versus replacement, feasibility studies, guidelines for saving a school, and model public policies.

www.mnhs.org/shpo/
Located in the Society’s Historic Preservation, Field Services and Grants Department, the SHPO fulfills its mission to preserve and promote Minnesota history by working to:
Identify, evaluate, register and protect Minnesota’s historic and archaeological properties,
Encourage the development of local history organizations and activities, and
Assist government agencies in carrying out their historic preservation responsibilities.