Mednar and GoPubMed have been voted Top Health Search Engines of 2008 by two independent measures.
Mednar is a federated search engine designed to quickly access information from a multitude of credible sources. Federated search is a new way to comprehensively search multiple databases in real time, ensuring a superior level of search results by ignoring outdated articles, irrelavant research and spam. Mednar offers several tools to narrow searches, drill down into topics and discover new information sources.
GoPubMed is a knowledge-based search engine for the life sciences and is based on PubMed, a service of the U.S. National Library of Medicine that includes over 18 million citations from MEDLINE, the world’s most comprehensive source of life sciences and biomedical bibliographic information, and other life science journals for biomedical articles dating back to 1948. Once keywords are submitted to PubMed, the resulting abstracts are classified using Gene Ontology (a hierarchical vocabulary for molecular biology covering cellular components, biological processes and molecular functions) and Medical Subject Headings (MeSH), a hierarchical vocabulary covering biomedical and health-related topics. Quite simply, GoPubMed enables users to find more relevant information significantly faster.