Electronic Databases & Directories: Alphabetical List
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See also: Subject List
Database Restrictions for Databases Marked [On-site Access Only]:
License agreements between the NLM® and the database vendors or producers limit use of the subscription databases to staff and on-site visitors.
Database vendors copyright the Web-based database search pages.Database producers copyright the databases.
- AccessGUDID: Global Unique Device Identification Database, HHS: FDA & NIH: NLM
- American Hospital Directory
- Biodiversity Heritage Library
- Bioethics Resources, NIH: NLM
- BioMed Central
- Board Certified Physicians
- Bookshelf, NIH: NLM
- [On-site Access Only]
- CAMEO Chemicals: Database of Hazardous Materials
- CDC Stacks, HHS: CDC
- CDC Travelers' Health, HHS: CDC
- CenterWatch, clinical trials database
- CHEMM: Chemical Hazards Emergency Medical Management, HHS
- Chronicling America, Historical American Newspapers, Library of Congress
- ClinicalTrials.gov, NIH: NLM
- ClinRegs, NIH: NIAID
- Code of Federal Regulations, updated frequently at ecfr.gov or updated annually (official edition) at govinfo
- Comparative Toxicogenomics Database, NC State University and NIH: NIEHS
- Compilation of Genetics Resource Databases, NIH: NIDA
- Congress.gov, Library of Congress
- Congressional Research Service Reports, Library of Congress
- Consultant, Veterinary Medicine
- Copyright Clearance Center
- CPT Codes: Current Procedural Terminology
- Creative Commons Search
- [On-site Access Only]
- Data.gov
- Defense Technical Information Center (DTIC) Technical Reports
- Digital Object Identifier (DOI) Lookup
- Digital Public Library of America
- DOAJ: Directory of Open Access Journals
- NLM Databases, NIH: NLM
- DailyMed®, NIH: NLM and FDA
- Data Discovery at the NLM®
- Dataset Catalog
- Dietary Supplement Label Database (DSLD) NIH: ODS & NLM
- Digital Collections
- [On-site Access Only]
- ECRI Guidelines Trust requires free registration or paid subscription for selected sections
- Electronic Theses & Dissertations Center
- Envirofacts
- ERIC: Educational Resources Information Center
- Europe PMC
- [On-site Access Only]
- FASTATS A to Z, HHS: CDC
- FAERS: FDA Adverse Event Reporting System, HHS: FDA
- FDA Approved Animal Drug Products (Green Book), HHS: FDA
- FDA Drug Approvals and Databases HHS: FDA
- FDA Post-Approval Database, HHS: FDA
- Federal Register
- Find a Health Center, HHS: HRSA
- [On-site Access Only]
- Generalist Data Repositories, NIH: NLM
- Genetic Test Registry, NIH: NLM
- Genetics and Rare Diseases Database, GARD Information Center, NIH: NCATS
- Google Scholar
- govinfo includes the Federal Register and Congressionally Mandated Reports
- GPO Catalog of US Government Publications
- Grants.gov, HHS
- [On-site Access Only]
- Gale Directory Library [On-site Access Only]
- Directory of Special Libraries and Information Centers
- Encyclopedia of Associations: International
- Encyclopedia of Associations: National
- Encyclopedia of Associations: Regional, State, and Local
- Gale Directory of Publications and Broadcast Media
- Government Research Directory
- International Research Centers Directory
- National Directory of Nonprofit Organizations
- National Faculty Directory
- Publishers Directory
- Research Centers Directory
- Scholarships, Fellowships and Loans
- Statistics Sources
- HathiTrust Digital Library
- Health Services/Technology Assessment Texts, NIH: NLM
- Health Topics A-Z, NIH: NCCAM
- Health Topics A to Z, HHS: CDC
- [On-site Access Only]
- ICD-11 codes, International Classification of Diseases, 11th Revision
- INCHEM: Chemical Safety Information from Intergovernmental Organizations
- International Clinical Trials Registry Platform
- Information on Select Dietary Supplement Ingredients and Other Substances, HHS: FDA
- Injuries, Illnesses, and Fatalities Databases
- International Medical Devices Database
- Internet Archive
- IUPAC Nomenclature of Organic Chemistry
- IVIS: International Veterinary Information Service
- NLM® Databases, NIH: NLM
- Images from the History of Medicine
- Images, Photographs, and Audiovisuals
- IndexCat™, the Index-Catalogue of the Library of the Surgeon-General's Office
- [On-site Access Only]
- InCites, formerly Journal Citation Reports
- Index Nominum: Micromedex
- International Research Centers Directory
- ISSN Online, International Standard Serial Numbers
- JCI Accredited Organizations, Joint Commission International
- LactMed®: Drugs and Lactation Database, NIH: NLM
- LocatorPlus® Online Catalog, NIH: NLM
- [On-site Access Only]
- Medical Subject Headings Database (MeSH® Database) & MeSH Browser, NIH: NLM
- MedlinePlus® and MedlinePlus en español, NIH: NLM.
- MEDLINE®/PubMed®, NIH: NLM
- MedPix, NIH: NLM
- MEPS: Medical Expenditure Panel Survey, HHS: AHRQ
- Merck Manual: Consumer Version
- Merck Manual: Professional Version
- Merck Veterinary Manual
- MetaLib, search multiple government databases simultaneously
- [On-site Access Only]
- National Agricultural Databases, National Agricultural Library, USDA: NAL
- NASA Scientific & Technical Information
- National Academies Press
- National Archives
- National Criminal Justice Reference Service Abstracts Database
- National Information Center on Health Services Research & Health Care Technology (NICHSR), NIH: NLM
- National Technical Reports Library
- Networked Digital Libraries of Theses and Dissertations
- NIH Image Gallery, NIH
- NIOSH Publications and Products, HHS: CDC
- NLM® Databases, NIH: NLM
- [On-site Access Only]
- NCRP: National Council on Radiation Protection and Measurements Reports: Safety & Industrial Hygiene
- National Directory of Nonprofit Organizations
- National Faculty Directory
- Natural Medicines: Comprehensive Database
- Online Dictionary for Library and Information Science
- OMIA: Online Mendelian Inheritance in Animals, University of Sydney (Australia) and NIH: NLM
- OMIM: Online Mendelian Inheritance in Man, NIH: NLM
- OpenDOAR: Directory of Open Access Repositories
- Openverse: free stock images and audio
- OTseeker, Occupational Therapy
- Patent Public Search
- PDR: Physician's Desk Reference
- PharmGKB
- PHIL: Public Health Image Library, HHS: CDC
- Pill Identification, NIH: NLM
- Profiles in Science®, NIH: NLM
- PMC: PubMed Central®, NIH: NLM
- [On-site Access Only]
- Pediatric Emergency Medicine Practice
- POISINDEX Managements: Micromedex
- PQDT Open
- Preprint Citation Index
- ProQolid: Patient-Reported Outcome and Quality of Life Instruments Database
- ProQuest Dissertations & Theses Citation Index
- PsycARTICLES
- Publishers Directory
- REHABDATA Literature Database
- REMM: Radiation Emergency Medical Management, HHS
- RePORTER: REPORT Expenditures & Results, NIH
- [On-site Access Only]
- Reaxys Chemical Database
- Red Book [See Reading Room staff for login]
- Research Centers Directory
- Russian Science Citation Index
- Sanford Guide of antibiotics and antifungals [On-site Access Only]
- SCIELO: Scientific Electronic Library Online
- SEER Cancer Statistics, NIH: NCI
- State Health Facts
- State Hospital Associations
- [On-site Access Only]
- Teacher Reference Center [On-site Access Only]
- ThomasNet.com: supplier discovery & product sourcing
- Toxicological Profiles, Toxic Substances Portal, HHS: CDC
- TESS: Trademark Search
- TRIP Database: Turning Research into Practice
- UMLS®: Unified Medical Language System® , NIH: NLM
- USA.gov
- US Copyright Office, Library of Congress
- VAERS: Vaccine Adverse Event Reporting System, HHS: CDC & FDA
- VASC: Value Set Authority Center, NIH: NLM
- Wellcome Library: Collections and Images
- Wikimedia Commmons
- WorldCat
- [On-site Access Only]
- Ulrich's Periodicals Directory
- UpToDate
- Web of Knowledge/Web of Science [On-site Access Only
- Arts & Humanities Citation Index
- BIOSIS Citation Index
- Book Citation Indices
- Conference Proceedings Citation Indices
- Chemical Chemical Reactions
- Current Contents Connect
- Data Citation Index
- Derwent Innovations Index
- Emerging Sources Citation Index
- InCites, formerly Journal Citation Reports
- Index Chemicus
- MEDLINE®
- Preprint Citation Index
- ProQuest Dissertations™ & Theses Citation Index
- Research Commons
- Russian Science Citation Index
- SciELO Citation Index
- Science Citation Index
- SCImago Journal & Country Rank
- Social Sciences Citation Index
- Zoological Record
- World Biographical Information System
Last Reviewed: March 3, 2026