With more than 750,000 human-edited definitions, Acronym Finder is the world's largest and most comprehensive dictionary of acronyms, abbreviations, and initialisms.
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This database provides indexing and abstracts from more than 4,000 current serial and non-serial titles, including content from AIAA and NASA.
The landmark American National Biography offers portraits of more than 17,400 men and women -- from all eras and walks of life -- whose lives have shaped the nation.
Archive Finder brings together ArchivesUSA and the cumulative index to the National Inventory of Documentary Sources in the UK and Ireland (NIDS UK/Ireland).
Online access to nearly a million descriptions of archival collections owned by thousands of libraries, museums, historical societies and archives worldwide.