The National Library of Medicine, includes over 15 million citations for biomedical articles back to the 1950's. These citations are from MEDLINE and additional life science journals.

• PubMed, includes links to many sites providing full text articles and other related resources.  

Specialized Information Services (SIS) Division of the National Library of Medicine (NLM) is responsible for information resources and services in toxicology, environmental health, chemistry, HIV/AIDS, and specialized topics in minority health.

• Toxicology & Environmental Health - Databases and other resources related to toxicology and environmental health. Features TOXNET.  
• Chemical Information - Databases and other resources designed to help you search for information by chemical name or structure. Features ChemIDplus: Lite or Advanced.  
• HIV / AIDS - Links to journal literature, clinical trials and treatment information, meeting abstracts, and other scientific and consumer-related resources.  
• Outreach Activities & Resources - Programs, resources and web sites for minority and other specific populations.  
• Directory of Health Organization - Features DIRLINE and Health Hotlines.

Medline Plus - Health Information from U.S. National Library of Medicine and National Institute of Health

• Health Topics - Start here with over 750 topics on conditions, diseases and wellness
• Drug Information - About your prescription and over-the-counter medicines and interactions 
• Medical Encylopedia - Includes pictures and diagrams  
• Dictionary - Spellings and definitions of medical words  
• News - Health News from the past 30 days  
• Directories - Find doctors, dentists and hospitals  
• Go Local - A service for finding local resources for health-related issues  
• Other Resources - Local libraries, health organizations, international sites and more  
• Mental illness- You can read breaking news on mental health issues. You can also research symptoms, treatments and finding help. Plus, there are links to articles on coping with mental illness in loved ones.
• Interactive Tutorials - Great interactive health education resources from the Patient Education Institute. Using animated graphics each tutorial explains a procedure or condition in easy-to-read language. You can also listen to the tutorial.