Sandra Porter has posted a series of posts on finding scientific papers for free: A day in the life of an English physician – What’s the best way to find free scientific publications? – My new favorite method – one more experiment
via: Finding scientific papers for free
Related: Get research papers free – Open access science and engineering posts – Open Access Engineering Journals – Curious Cat Science and Engineering Search Engine
If you are of a chemical bent, then you can find free scientific papers using the Chemrefer-Chemspider mashup – more details here – http://www.chemspy.com/chemistry-news/chemrefer-chemspider-coupled.html
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RT @karenblakeman: New useful search engine that returns full text scientific articles not subject to access fees http://www.knowmade.com/free-fulltext-pdf.html