Medical Metasites
WebMD
Agency for Healthcare Research and Quality
Geneva Foundation for Medical Education and Research
Hardin Metadirectory
Journal Watch: Medicine that Matters
Dr. McNabb's Medical Book Marks
Oregon Health & Science University
Supercourse: Epidemiology, the Internet and Global Health
Yahoo Health Links
Martindale's Health Science Guide
Virtual Hospital
Wikipedia Medicine
Medical Matrix
eMedicine (Instant Access to the Minds of Medicine)
The Medical Algorithms Project

Allergy and Immunology
AAAAI Conditions and Treatments
Hardin Allergy Links
Allergy, Asthma and Immunology Online
National Institute of Allergy and Infectious Diseases
NIH Guidelines for the Diagnosis and Management of Asthma
All Allergy.net

Adolescent Medicine
Go Ask Alice
Healthfinder-just for teens
4 Girls Health
Society for Adolescent Health and Medicine

Alternative/Complementary Medicine 
National Center for Alternative and Complementary Medicine  
Cancer Complementary and Alternative Medicine from The National Cancer Institute
Herbs and Supplements on Medline Plus (from National Standard)
HerbMed, a database of herbal medicines 
NIH Office of Dietary Supplements 
Information Resource: about herbs, botanicals & other products from Memorial Sloan Kettering Cancer Center
Quackwatch
Rosenthal Center for Complementary and Alternative Medicine
American Botanical Council Herbalgram
Herb Research Foundation
Herbs at a Glance
CAM (complementary and alternative medicine) on PubMed

Anatomy & Physiology/Images
Visible Human Project
Atlas of Human Anatomy in Cross Section
Illustrated Encyclopedia of Human Anatomic Variation
Gray's Anatomy
Free anatomy study guide for medical students
Health Education Assets Library (HEAL)
The Atlas of Gastrointestinal Endoscopy
DermAtlas
Digital Atlas of Ophthalmology
Public Health Image Library (PHIL) from the CDC
The Whole Brain Atlas
AnatQuest: anatomic images online from the National Library of Medicine's Visible Human Project
McGoogan Library of Medicine, Univ. of Nebraska Medical Center: Medical Images on the Web
American Medical Association: atlas of the body
E-anatomy

Anesthesiology
Hardin Anesthesiology links
Pain site, including online pain journals
Global Textbook of Anesthesiology
American Academy of Pain Management
American Society of Anesthesiologists
Virtual Anaesthesia Textbook

Bioethics
Bioethics Research Library at Georgetown University  
Center for the Study of Ethics in the Professions: Codes of Ethics Online
NIH Bioethics Resources on the Web
AMA: Ethics
American Society of Law, Medicine & Ethics
Presidential Commission for the Study of Bioethics
Links of Interest from Penn Center for Bioethics
Ethics and Compliance Officer Association
Anscombe Bioethics Centre (academic Roman Catholic)
Stanford Center for Biomedical Ethics
American College of Physicians Ethics Manual 5th ed
National Center for Ethics in Health Care (Veterans Administration)
Catholic Healthcare East Ethics Tools
Religion & Ethics Newsweekly-PBS
Bioethics in the News
Ethical and Religious Directives for Catholic Health Care Services, Fifth ed
EthicsShare

Biology
Cell and Molecular Biology Online
Biology Online-Information in the Biological Sciences
Life Science Dictionary Project

Cardiology
Hardin coronary heart disease links
American College of Cardiology Clinical Statement (Brief free registration required)
American Heart Association Scientific Statements
American College of Cardiology
American Heart Association
Cardiosource
American Society of Nuclear Cardiology: Guidelines and Standards
The Heart Surgery Forum
New Cholesterol Guidelines
Prevention, Detection, Evaluation and Treatment of High Blood Pressure (JNC 8)

Clinical Trials
Center Watch: global clinical trials information
Clinical Trials Government site
Search Clinical Trials.org
National Cancer Institute:  Clinical Trials
Coalition of Cancer Cooperative Groups: Trial Search
NIH Search Clinical Research Studies Protocol Database
Oncolink
Pharm Web Yellow Pages (Has lists of commercial drug companies with clinical trials-but they pay to be listed)
Acurian (Patient Recruitment)
Lilly Clinical trial Registry
Clinical Study Results--drug trials
TrialsCentral
International Clinical trials from the World Health Organization

Dentistry
Hardin Dentistry Links
American Dental Association
MedlinePlus Dental Links

Dermatology
Hardin Dermatology Links
Dermatology Online Atlas
Dermatlas
Dermoscopy

Economics/Practice Management
Healthcare Financial Management Association
Medical Group Management Association
Medical Practice Trends

Emergency Medicine
Hardin Emergency Medicine Links
American College of Emergency Physicians
EMTALA at MedLaw
EMTALA.com
OSHA Best Practices for Hospital-Based First receivers of Victims
Emergency Medicine at NCEMI
American Trauma Society

Endocrinology/Diabetes
Hardin Endocrinology Links
American Diabetes Association
2011 Clinical Practice Recommendations (ADA)
2011 Guidelines and Recommendations for Laboratory Analysis in the Diagnosis and Management of Diabetes Mellitus (ADA)
Joslin Diabetes Center affiliated with Harvard Medical
CDC: Diabetes Public Health Resources
National Diabetes Education Initiative
National Diabetes Information Clearinghouse
University of California, San Francisco: research, clinical care and education in endocrinology

Evidence-Based Medicine
Agency for Healthcare Research and Quality: National Guideline Clearinghouse
Agency for Healthcare Research and Quality: Clinician Guides
AHRQ: DEcIDE Network
SUMSearch2: Meta-search of medical evidence
ACP Journal Club (refer to A to Z Online Journal list for log-in instructions)
Grey Matters: a practical search tool for evidence based medicine from CADTH
Evidence Based Practice Tutorial from Penn State
How to read a paper: BMJ series of articles
AMA User's to Evidence based practice
BestBETS (best evidence topics)
Family Practice Medicine: A Simple method for evaluating the clinical literature
TRIP Database
BMJ: Evidence Updates
Technology Evaluation Center
Evidence Based Practice (Univ of Washington Metasite)
An Introduction to Information Mastery, Evidence-Based Medicine
Understanding Evidence-Based healthcare: a tutorial from the United States Cochrane Center
The NNT

Family Practice
Hardin Family Practice Links
American Academy of Family Practice
Family Medicine Digital Resources Library
JAMA: The Rational Clinical Examination (refer to A-Z Listing of online journals for username and password)

Gastroenterology
Hardin Digestive System & Intestinal Diseases
The Atlas of Gastrointestinal Endoscopy
 American Gastroenterology Association
American College of Gastroenterology
GastroHep.com
GastroSource
Pancreatica.org

Genetics
Developmental and Genetic Diseases from the Geneva Foundation for Medical Education and Research
Hardin Genetic Disorders
NCBI: The Human Genome: a guide to online information resources
NCBI: Genetics & Medicine
Genetics Home Reference
The Cancer Genome Atlas
Genetics and Genomics for Health Professionals
ACMG: ACT Sheets and Confirmatory Algorithms
Online Mendelian Inheritance in Man
 NORD: National Organization for Rare Disorders
Gene Gateway: exploring genes and genetic disorders
1000 Genomes Project
PubMed Clinical Queries for Medical Genetics

Geriatrics
Hardin Geriatrics Links
Webtreats from ACOG on Aging
American Gerontological Society
National Institute on Aging
Alzheimer's Disease Education & Referral Center
NIH SeniorHealth.gov
Center for Aging Services Technologies (CAST)
Geriatrics at Your Fingertips

Hematology
Hardin Hematology Links
Bloodline
American Society of Hematology

History of Medicine / (Humor Medical)
NLM History of Medicine Division
Gesundheit Institute
Medlib's Funny Doctor's Names List
Nursing Humor

Infectious Diseases/AIDS
Hardin AIDS Links
Hardin Infectious Diseases / Bacterial Diseases / Microbiology Links
HIV InSite gateway
Association for Professionals in Infection Control and Epidemiology, Inc.
Knowledge is Infectious (hospital acquired infection and its prevention)
Public Health Practices
MdLinx.com
AIDSinfo- US DHHS
Flu.gov
Pandemic Flu Search
HEALTHmap--current global and local state of infectious diseases

Informatics/Computing
E-MedTools
Sermo: physician social networking site
AHRQ National Resource Center for Health Information Technology
ACP-ASIM PDA Portal
Open Directory Project-Medical Informatics
eProcrates
Pediatric Pilot
MDeverywhere
pdaMD.com
Handheld Librarian
The Medical Algorithms Project
Pew Internet Organization
The American Nursing Informatics Association
The American Medical Informatics Association
CollectivMed.com
MDTool.com
PubMed search for handheld. wireless devices
PubMed on Tap- for PDA's
Diagnosaurus--DDx software program
CataList, the official catalog of LISTSERV lists
DB's Medrants (medical blog)
Docnotes (medical blog)
Blogger (Google's publishing tool)
Bloglines
List of medical wikis
Center for Health Transformation
CHIME-College of Healthcare Information Management Executives
Found in Cache: Hospital Social Network list

Laboratory Medicine/Pathology
American Society of Clinical Pathologists
Hardin Pathology Links
Pathmax
Internet Pathology Laboratory for Medical Education
Lab tests Online
American Association of Clinical Chemistry
Frozen consult
Hematopathology Phenotypes

Literacy/Health Literacy

Websites/Initiatives  
AMA Foundation Health Literacy Initiative
California Health Literacy Initiative
Hablamos Juntos
Health & Literacy Special Collection
HRSA: Culture, Language & Health Literacy Resources: Research & Education
Health Literacy Consulting/Health Literacy Month
Health Literacy Studies/Harvard School of Public Health
CDC: Accurate, Accessible and Actionable Health Information for All
Healthy People Library Project
Partnership for Clear Health Communication: Ask Me 3
Pfizer Inc. Clear Health Communication Initiative
The Clear Language Group
The Plain Language Initiative
Consumer Health Vocabulary Initiative (open source)
CDC: plain language thesaurus for health communications
PubMed topic search on health literacy
HHS: National Action Plan to Improve Health Literacy

Readability Tools
Rapid Estimate of Adult Literacy in Medicine(shorter version)
Rapid Estimate of Adult Literacy in Medicine (longer version)
Test of Functional Health Literacy in Adults
SMOG Readability

Videos
Asking Questions to Get the Care You Need from AHRQ
In Plain Language
Improving Americans Health Literacy from Harvard Public Health

Online Tutorials
Health Information Literacy
Health Literacy: new field, new opportunities
Health Literacy Special Collection
NIH Plain Language Online training
Health Information Literacy from the Medical Library Association

Guides
AMA Health Literacy: a manual for clinicians
Consumer Health Manual: National Network of Libraries of Medicine
Promoting Health Literacy through Easy-to-Read Materials from the National Library of Medicine
Health Literacy Public Health Forums: partners for action
Is Our Pharmacy meeting patients' needs: a pharmacy health literacy assessment tool user's guide
Pfizer Principles for Clear Health Communication Handbook
The Health and Literacy Compendium: a guide to easy to read health education materials for adults with limited literacy skills

Neonatology
American Academy of Pediatrics
Neonatology on the Web
National Institute of Child Health and Infant Development Cochrane Page

Nephrology
Hardin Nephrology Links
United States Renal Data System
National Kidney Disease Education Program

Neurology/Neurosurgery
Hardin Neurology Links
Neurosurgery:On-Call 
Neurosciences on the Internet
The Whole Brain Atlas
Internet Stroke Center
Neuroscience Gateway
Prescription Pain Medications: frequently asked questions and answers for health care professionals from the DEA

Obstetrics & Gynecology
Hardin OB/GYN links
ACOG
Webtreats from ACOG
Visible Embryo
La Leche League Center for Breastfeeding Information
The National Women's Health Information Center
Reproductive Health Gateway
North American Menopause Society
PeriStats (March of Dimes Perinatal Data Center)
MaternityWise
Quick Health Data Online (formerly The National Women's Health Database)
ACOG Patient Education Pamphlets-- English and Spanish (For Members Only)
Global Library of Women's Medicine

Occupational Medicine
Hardin Occupational Medicine Link
OSHA

Oncology
Hardin Oncology Links
PDQ- NCI's comprehensive cancer database
California Cancer Registry
Cancer in North America (statistics)
Cancer Genome Atlas
SEER:cancer statistics review
Cancer.net: Breast Cancer
Association of Cancer Online Resources
OncologySTAT
American Cancer Society
NCI's Cancer Trials Support Group
Leukemia / Lymphoma Organization
National Cancer Database
NCCN Practice Guidelines / Outcomes Database (registration required)
American Society of Clinical Oncology
NIH Stem Cell Task Force
Cancer Control Planet
International Cancer Research Portfolio
Asian Language Cancer Education Materials

Ophthalmology
Hardin Ophthalmology Links
Atlas of Ophthalmology
American Academy of Ophthalmology
The Glaucoma Foundation
Macular Degeneration Foundation
National Eye Institute
American Foundation for the Blind

Orthopedics
Hardin Orthopedic Links
Worldortho
Orthogate

Wheeless' Textbook of Orthopaedics
Orthopaediclist

Otolaryngology
Hardin Otolaryngology Links

PDA Resources
PDA Reference Resources from FSU Maguire Medical Library

Palliative Care
US Living Will Registry
American Academy of Hospice and Palliative Medicine
End-of-Life Physician Education Resource Center
Hospice and Palliative Nurses Association
End of Life Care (AACN)
Get Palliative Care.org
National Hospice and Palliative Care Organization: Caring Connections
New York Online Access to Health (NOAH): Advance Directives by States
Americans for Better Care of the Dying
Kids Health: Helping your child deal with death

Pediatrics
Hardin Pediatrics Links
American Academy of Pediatrics
Oncolink Pediatric Oncology
Evidence Based Pediatrics from the University of Michigan
General Pediatrics.com (Metasite)
Healthfinder for Kids
Pediatric Society of Critical Care Medicine
Virtual Children's Hospital
Kids Health, for parents, kids and teens
Medical Home Portal
Federal Interagency Forum and Child and Family Statistics
American Board of Pediatrics
Child & Family WebGuide
Pediatric Oncology Resource Center  (lay oriented)
National Institute of Child Health and Human Development
Kids Count Data Book Online
Child Trends DataBank
The National Children's Study
AAP Policy Site
Holistic Pediatric Alliance
Pediatrix University
Pediatric Medical Calculators
National Association of Children's Hospitals--Benchmarking
Arthur's Guide to Children's Hospital Boston
PediatricRadiology.com: a pediatric radiology digital library
Center for Pediatric Emergency Medicine
Bright Futures from American Academy of Pediatrics
Revised Clinical Growth Charts from the CDC
Pediatric Education.org

Pharmacology/Pharmacy
NLM Drug Information Portal
RX List
FDA
Pillbox-- drug identification tool-beta format
DailyMed: current medical information about marketed drugs
CDER New and Generic Drug Approvals: 1998-present
New FDA approved drugs (Drug InfoNet)
Hardin Pharmacy Links
Martindale's Health Science Guide (Virtual Pharmacy Center)
The Merck Manual
PharmWeb
The Institute for Safe Medication Practices
American Association of Colleges of Pharmacy 
PDR net (Physicians and nurses can register for free access to online PDR)
CenterWatch Listing of Newly Approved Drug Therapies
Facts and Comparisons
FDA Electronic Orange Book Approved drug products with Therapeutic Equivalence Evaluations
Medline Plus (USP DI v. 2 Advice for the Patient)
PhRMA New Medicines in Development Database
Safemedication.com (American Society of Health-System Pharmacists)
Street Terms for Drugs
RXHope (gain no-cost access to medications)
Lilly Clinical Trial Registry
RXHelp: a partnership for prescription assistance
RPhWorld.com including medical search engine built by pharmacist for pharmacists and others
CURES- Controlled Substance Utilization review and Evaluation Systems

Physical Medicine/Rehabilitation
Hardin Physical Medicine/Rehabilitation Links
ABLEDATA (searchable database for assistive products)
Disability Resources Monthly Guide to Disability Resources on the WWW
Disability.gov

Practice Guidelines
National Guideline Clearinghouse
Primary Care Clinical Practice Guidelines (Brief Registration Required)
Agency for Healthcare Research and Quality
National Comprehensive Cancer Network  Practice Guidelines, Outcomes database (Refer to Research Databases page under the Other Resources / Databases category for user name and password)
Institute for Clinical Systems Improvement
AAP Policy and Practice Guidelines
College of American Pathologists Cancer  Protocols and Checklists

Preventive Medicine
Guide to Clinical Preventive Services from AHRQ
Office of Disease Prevention and Health Promotion
National Guideline Clearinghouse
Prevention Care and Management from AHRQ

Psychiatry/Psychology/Substance Abuse
Hardin Psychiatry Links
American Psychiatric Association
American Psychological Association
Mental Help Net
Buros Mental Measurements
American Psychoanalytic Assn book/journal database
Internet Mental Health
Substance Abuse and Mental Health Services Administration
Substance Abuse Resource Center
Street terms for Drugs
President's New Freedom Commission on Mental Health
National Institute on Alcohol Abuse and Alcoholism--science database
Substance Abuse and Mental Health Services Administration's (SAMHSA)
National Institute of Drug Abuse
Psych Central
Network of Care (includes California specific mental health info)
General psychiatric rating scales
Finding test instruments and measures

Public Health/Statistics
Hardin Public Health Links
Healthy People 2020
CDC Wonder (wide ranging online data for epidemiologic research)
Federal Statistics
World Health Organization
Federal Interagency Forum on Child and Family Statistics
US Census
US Census Bureau: American FactFinder
Cancer in North America (statistics)
HCFA Stats and Data (Centers for Medicare and Medicaid Services)
SEER:cancer statistics review
Statistical Abstract of the United States
Agency for Healthcare Quality and Research (AHRQ)
National Vital Statistics System
United Health Foundation State Health Ranking
Population Reference Bureau
CIA World Factbook
CDC: National Center for Health Statistics
Pew Internet Organization
CensusScope
Annie E. Casey Foundation: Kids Count Data Book Online
Medscape Public Health and Prevention Homepage
Quick Health Data Online (formerly the National Women's Health Database
Passport Health
SNAPS: local level community profiles nationwide from the CDC
National Environmental Public Health Tracking Network from the CDC

Pulmonary Medicine
The American Academy of Allergy, Asthma, & Immunology (AAAAI)
Hardin Respiratory Links
Tuberculosis - From (NIAID), National Institutes of Health
Asthma Information for Health Care/Other Professionals - National Heart, Lung, and Blood Institute

Radiology/Radiotherapy
Hardin Radiology Links
American College of Radiology
American College of Radiology Imaging Network
American College of Radiation Oncology
Aunt Minnie.com
PediatricRadiology.com: a pediatric radiology digital library
FDA Center for Devices and Radiological Health
CHORUS
Society of Interventional Radiology
Radiology wiki

Rheumatology
CDC links and Rheumatology related organizations and links
Hardin Rheumatology Links

Sports Medicine
Hardin Directory Sports Medicine Links
Exercise Science & Sports Medicine Links

Surgery
Hardin Surgery Links
American College of Surgeons
The Heart Surgery Forum
National Institute of Transplantation
Web Surg (includes videos)
LifeSharers

Telemedicine
Hardin Telemedicine Links

Toxicology
American College of Medical Toxicology: Toxicology Reference Data
Hardin Toxicology Links
Environmental Protection Agency
MSDS: under General Resources in SJO Clinical Applications on Carenet
Agency for Toxic Substances and Disease Registry Environmental info, MSDS, and more
Where to find Material Safety Data Sheets on the Internet
California Environmental Protection Agency
OSHA
Society of Toxicology
Toxnet, a cluster of databases on toxicology, chemicals and related areas
National Institute of Environmental Health Sciences
Toxicological Profiles
12th Report on Carcinogens
TOXMAP

Urology
Hardin Nephrology Links
Cornell Medical College: Dept. of Urology Resources

Veterinary Medicine
American Society for the Prevention of Cruelty to Animals (ASPCA)
American Veterinary Medical Association
College of Veterinary Medicine, University of Illinois Urbana-Champaign
Consultant: a diagnostic support system from Cornell
Food and Drug Administration (FDA): Center for Veterinary Medicine
The Merck Veterinary Manual 9th edition