The NCPL bibliography is intended to comprise all English language secondary source materials, both domestic and international, pertaining to the law of nonprofit organizations. It addresses the difficulty of researching secondary source materials in the field of nonprofit law. While the Web has been an excellent research tool for primary sources, no online index of secondary sources includes materials dated earlier than 1975. The NCPL bibliography contains an outstanding collection of thousands of citations to secondary source materials including legal treatises, law review articles, other journal and periodical articles, and selected government materials.

The NCPL has created this web site, through which the bibliography can be searched. The web site accommodates a simple query for quick search results, as well as more complicated queries including full Boolean searches.

A majority of the articles in the bibliography have been assigned multiple subject-area keywords, to aid with more advanced searches. All search results are formatted in Bluebook citation form.