The "Nonbook Materials Core Collection" is one of H. W. Wilson's new subscription-based electronic core collection development databases. It is a new addition to the five-volume core collection series formerly known as the "Standard Catalog Series." Other titles in this series have long been staples of collection development resources for both school and public librarians. These collection development resources, formerly available in print and now available online, provide librarians with quality core lists of recommended library materials. The "Nonbook Materials Core Collection" includes annotated descriptions that address both quality and content of the resources. There are also review excerpts and award information for over 3,000 nonbook items. All of the electronic and digital resources, audiobooks, video recordings, sound recordings, games, or simulations are geared for students in grades preK-12, and for inclusion in school and public library collections. Professional curricular support materials are also reviewed and included in the database. (Contains 5 figures.)