| | Article Sciences - Scientific article search and order engine, a service provided by Institut de l'Information Scientifique et Technique (INIST) of Centre National de la Recherche Scientifique (CNRS), France. |
| | Entrez - Simultaneously search multiple life sciences databases at the National Center for Biotechnology Information (NCBI). |
| | Gateway - The National Library of Medicine Gateway allows users to search in multiple retrieval systems at the U.S. National Library of Medicine. |
| | Med Help International Search - Consumer medical search engine comprising articles, patient support groups, glossary, and Q&A. |
| | Med411 - A medical search engine and portal. |
| | MedHunt - A tool from Health on the Net that searches the full text of 60,000 medical documents. Searches can be narrowed by location or type of source. |
| | Medic8.com - Directory and medical search engine for healthcare professionals. |
| | Medical World Search - This tool has the ability to query other search engines, also provides a discussion forum, medical spelling and drug acronym devices. All users must register and pay annual membership fee. |
| | OmniMedicalSearch.com - A medical metasearch engine including various seek options and information tools. |
| | U.S. Non-Commercial Medical Search Engines - Dr. Claudia Krenz provides search boxes and instructions for eleven specialist search tools, mainly maintained by the National Library of Medicine. |
| | VivÃsimo ClusterMed - Sends requests to the PubMed search engine and clusters the search results. |
| | Worldhealthcare.net - A UK based medical search engine providing informative resources from around the globe. |