Path Press is a non-profit entity, which handles legal matters and holds the copyrights of all Ven. Ñāṇavīra Thera's writings together with some the writings from others; Path Press Publications is an independent for-profit publisher of books, Ñāṇavīra Thera Dhamma Page, and databases in the Buddhist philosophy, and writings of Ven. Ñāṇavīra Thera and Samanera Bodhesako.
The references module includes filters to import references from online bibliographic databases (e.g. PubMed) and from journal webpages (e.g. Proceedings of the National Academy of Sciences).
The NUC of Pre-1956 Imprints was an important resource for verifying bibliographic information and finding copies of books before the advent of large electronic bibliographic databases, such as WorldCat; the massive size and weight of the set make it less useful now.