This document discusses how MARC records can enhance the discoverability of e-resources for library patrons and staff. It explains that MARC fields like 505, 520, and 6xx can improve subject searching and descriptions to aid discovery. For internal use, fields like 793, 856, and 910 can provide standardized names for packages and collections, URLs for accessing resources, and cataloging details. The document encourages using additional subject headings and content notes in MARC records to improve discovery of electronic resources.