NIRA's World Directory of Think Tanks provides a systematic introduction to the world's most prominent and innovative public policy research institutes, better known as think tanks. This completely revised edition contains up-to-date information available on 320 specially selected think tanks from 77 countries and regions. It also provides a convenient index of institutes by English names, acronyms and non-English names. This directory is an unusually detailed collection of carefully compiled information on public policy research institutes worldwide.

An academic chronological and extensive index of treaties, conventions and other historical documents. the collection today also includes treaties in the fields of human rights, commerce and trade, laws of war and arms control, and other areas.  The vast majority of texts date from the second half of this century, but the collection also includes historical texts, from the 1648 Treaty of Westphalia to the Covenant of the League of Nations.

The work of IGOs involve every human endeavor. IGO publications are important for researchers of current events, economics, history, humanitarian issues, international studies, and the political and social sciences. IGOs invest money and resources in their programs. Documents and publications provide information about these programs, and promote transparency in regard to the way the IGO uses its resources.

An extensive but not exhaustive database of some of the large and  influential NGOs operating internationally.

A detailed list of of social science sites with links to international professional associations in social sciences, including affiliated international institutions.

General Dictionaries, Language Dictionaries, Indices to Dictionaries, and Thesauri.