Library of Congress - www.digitalpreservation.gov
Digital Preservation Coalition - www.dpconline.org
POWRR Tool Grid - http://digitalpowrr.niu.edu/tool-grid/
Digital Preservation at Yale University Library - http://guides.library.yale.edu/digitalpreservation
Smithsonian Institution Recommendations for Preservation Formats
File Format Comparison Projects: Still Image and Audio-Visual Working Groups - Federal Agencies Digitization Guidelines Initiative
Recommended Format Specifications - Library of Congress
U.S. National Archives and Records Administration Digital Preservation Framework