The following links are for resources of use to small museums:
American Association for State and Local History, https://aaslh.org/: "The American Association for State and Local History (AASLH) is a national association that provides leadership and support for its members who preserve and interpret state and local history in order to make the past more meaningful to all people."
StEPs, https://learn.aaslh.org/products/steps-enrollment: "The Standards and Excellence Program for History Organizations (StEPs) is AASLH’s self-study standards program designed specifically for small- to mid-sized history organizations, including volunteer-run institutions."
Institute of Museum and Library Services, https://www.imls.gov/: The Institute of Museum and Library Services is the primary source of federal support for the nation's libraries and museums. We advance, support, and empower America’s museums, libraries, and related organizations through grantmaking, research, and policy development. Our vision is a nation where museums and libraries work together to transform the lives of individuals and communities.
National Park Service Conserv-O-Grams, https://www.nps.gov/museum/publications/conserveogram/cons_toc.html: "short, focused leaflets about caring for museum objects, published in loose-leaf format."
RE-ORG, http://www.re-org.info/: "RE-ORG offers tools for those entrusted with the protection of museum collections for the benefit of future generations."
Small Museums Toolkit, https://rowman.com/isbn/9780759113343: "The Small Museum Toolkit is a collection of six books that serves as a launching point for small museum staff to pursue best practices and meet museum standards. These brief volumes address governance, financial management, human resources, audience relations, interpretation, and stewardship for small museums and historic sites."
Storage Techniques for Art, Science and History, http://stashc.com/: "This website provides information and tools so that institutions of all types, sizes and resource levels can learn how to create safe and appropriate storage solutions. These solutions were written by and for collection care professionals in all fields."