Abbreviations and acronyms

Abbreviations.com
The A-Z of Acronyms and Abbreviations.

All That JAS: Journal Abbreviation Sources 
Registry of web resources that list or provide access to the full title of journal abbreviations

Cardiff Index to Legal Abbreviations
Search by title of abbreviation

Abbreviations and Sources for Reported and Unreported Case Law

Australian Law Journal Abbreviations Research Guide

Resources in the Library