Online Courses.org just released this terrific list of trusted search engines for science, aptly titled:
100 Extremely Useful Search Engines for Science.
Online Courses.org just released this terrific list of trusted search engines for science, aptly titled:
100 Extremely Useful Search Engines for Science.
RT@MatAbraz: New useful search engine that returns full text scientific articles not subject to access fees http://www.freefullpdf.com
http://freepdfsearch.com/ seems to be huge for scientific articles.