"If you haven't already seen it, here is a visual featuring what we believe are some of the best academic search engines for teachers and research students ..."
- https://scholar.google.com/
- https://www.eric.ed.gov
- http://www.virtuallrc.com/
- http://www.citeulike.org/
- http://jurn.org/#gsc.tab=0
- https://academic.microsoft.com/home
- https://www.loc.gov/
- https://www.refseek.com/
- https://www.sciencedirect.com/
- https://www.academia.edu/
Via Leona Ungerer