Information retrieval services

• BioMedLib: a free, enhanced search engine for the PubMed database
• BioMedSearch: another free, enhanced search engine for the PubMed database
• Canada Institute for Scientific and Technical Information (CISTI): an institute of the National Research Council of Canada
  • Discover: CISTI's journal article search engine
• FAQ archive
• Google.ca
  • Advanced search
  • Google Usenet search system
• GoPubMed
• Ingenta document delivery service
• Office of Scientific and Technical Information
• PubMed