The document discusses different categories of digital content for school libraries including web sites, content developed by the library, interactive services developed by the library, and fee-based electronic resources. It provides examples of types of content that could be included in each category such as curating educational web sites, creating introductory information and policies on the library's website, developing interactive forms and reference services, and subscribing to databases and educational portals. Maintaining interactive services is noted as being difficult but necessary to provide electronic reference assistance to users at home.