The United Nations Digital Library (UNDL) is now online at https://digitallibrary.un.org/ and currently provides access to over 860,000 speeches, documents, public domain publications, and more. . The UNDL is free to access and utilize.
A service of the United Nations Dag Hammarskjöld Library and the United Nations at Geneva Library the UNDL offers a number of “advanced search” features including truncation, limit by data field, and other advanced search options. Examples here. A detailed guide is also available.
Search results can also be turned into an RSS feed to be alerted to new results. The feed can also be delivered as an email alert.
Along with being able to search documents and other materials users can also browse /search the UNDL authority files and thesaurus.
From the UNDL:
United Nations Digital Library System offers you the possibility to personalize the interface, to set up your own personal library of documents, or to set up an automatic alert query that would run periodically and would notify you of search results by email [or RSS].
We plan to post more about this resource in the near future.
Direct to United Nations Digital Library
UN Digital Library Promo Video