In my view, the definition of grey literature should include one too often overlooked source of research about the law, namely the reports of law reform institutes.
The Diana M. Priestly Law Library at the University of Victoria in British Columbia has a page of links to law reform commissions in various countries. The University of Calgary Law Library provides a slightly different list.
Among the finding tools are:
- The British Columbia Law Institute has created a searchable law reform database that indexes over 7000 law reform materials from common law jurisdictions around the world
- The WorldLII Law Reform Project "aims to make searchable from one location all of the databases specialising in Law Reform available on any of the Legal Information Institutes (LIIs) that are part of WorldLII". The databases currently included are from the law commissions of Australia, Bangladesh, Hong Kong, India, Ireland, New Zealand, Scotland, Singapore, South Africa, Papua New Guinea and England
- The World Law Reform Collection Jurisdiction and Subject Index from Manas Media is an index to law reform commission publications searchable by keywords, jurisdiction and date. This collection contains references to thousands of titles from 37 jurisdictions indexed by 6 major categories and 61 subcategories. Full text of most titles published after 1999 is available in PDF format to subscribing libraries. Earlier titles are on microfiche
For historical background, Justice Canada's International Cooperation Group published a study on law reform agencies a few years ago. The study comes with an extensive bibliography.