A real favorite. Metacrawler Allows for searches using multiple search engines at once. Metacrawlers don't crawl the web themselves to build listings, but send searches to several search engines simultaneously. The results are then blended together onto one page. MedExplorer Medsite Medical Matrix Provides a free directory of selected medical sites on the Internet that have been evaluated by physicians and medical librarians and meet criteria for information quality and site usability.
Primary audience is healthcare practitioners.
The major goals of Medical World Search are to provide a search engine that operates over a selection of the most high quality medical sites on the Web and to facilitate searching by using a medical thesaurus that understands medical terminology and can thus search for related terms automatically. OMNI is created by a core team of information specialists and subject experts based at the University of Nottingham Greenfield Medical Library, in partnership with key organisations throughout the UK and further afield. Worth searching and bookmarking. Search or browse.