12 great Search Engines for academic related search

1. Academic info   : http://www.academicinfo.net/subject-guides
2. Archival research catalogue : http://www.archives.gov/research/arc/about-arc.html
3. BASE:  http://www.base-search.net/
4. Citeulike: http://www.citeulike.org/
5. Eric : http://www.eric.ed.gov/
6. Google Scholar: http://scholar.google.ca/
7. Infomine:  http://infomine.ucr.edu/
8. Infotopia:  http://www.infotopia.info/
9. Lib Guides Community:  http://libguides.com/community.php?m=i&ref=libguides.com
10. Library of Congress: http://www.loc.gov/index.html
11. Refseek: http://www.refseek.com/
12. The VLRC : http://www.virtuallrc.com/

Source:  http://www.educatorstechnology.com/2013/02/12-fabulous-academic-search-engines.html?m=1

Source: https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiJEgteCA3UeXmSNx14poH6VEii5Kcy67m7CGnRFDoc6ZWJBrpBaQrKntCaud_88UjARidyWlrFeHERw3C67uWa98SQTrh5igMpaSDMsDrsyqoAwLmhn76nTfEOMtVxMrEFPQ3JuEoCeF0/s1600/research_zone.gif