What are the major medical databases? How can I search Medline for free?
The major medical databases are MEDLINE (the online version of Index Medicus, also known as MEDLARS) and EMBASE. There are a number of differences between them, such as years of coverage (MEDLINE covers journals from 1966 onward; EMBASE only covers journals from 1974 onward). There are a few places that have offered free MEDLINE access. One such place that I know still works is: http://www.healthgate.com/HealthGate/MEDLINE/search.shtml. It offers an excellent graphical interface, but the searchability seems limited (e.g. I don’t think one can search by field). 7.