Another great resource from Getty. The Introduction to Imaging by Howard Besser not only provides information about digitizing analog content for a digital collection, but also gives a great overview of the entire process of creating a digital collection. It includes plenty of detailed info on scanners, digital images, system architecture, project planning, and digital preservation and sustainability. Add it to your bookmarks or download the pdf files.
Source: Introduction to Imaging, Revised Edition, by Howard Besser, edited by Sally Hubbard and Deborah Lenert