The following sites are good sources of basic how-to information on digital collection-building and digital preservation.
Howard Besser, Sally Hubbard, and Deborah Lenert: "Introduction to Imaging"
Robin Fay: "Metadata for Catalogers"
Library of Congress Authorities & Vocabularies
Mountain West Digital Library Policy Documents
Northeast Document Conservation Center (NEDCC) Toolkits
Alabama Digital Preservation Network (ADPNet)
Library of Congress Digital Preservation
A Guide to Distributed Digital Preservation