Citeseer (ribuan paper jurnal bidang computer science)
Directory of Open Access Journal
PubMed Central (free digital archive of biomedical and life sciences)
Google Scholar (citation index, abstak dam fulltext)
Mirror Scientific Data di LIPI (mirror di LIPI untuk jurnal ilmiah internasional)
DBLP Bibliography
Libra Academic Search
JSTOR Scholarly Journal Archieve
Biomed Central (the Open Access Publisher)
Highwire Press Stanford University
UC Berkeley on iTunes U (Materi kuliah gratis dari UC Berkeley)
MIT Opencourseware (Materi kuliah gratis dari MIT)
Patent Searching (Pencarian Dokumen Paten)
Ilmukomputer.Com (mulai banyak paper ilmiah yang diupload)
http://www.springerlink.com/home/main.mpx ( engineering subject)
http://www.jstage.jst.go.jp/browse ( Japan science and technology information aggregator, electronic )
http://www.tthomastelford.com/journals ( Institution of Civil Engineers)
http://www.journals.aip.org/( American Institute of Physics )
http://www.publish.aps.org/( Americah Physical Society)
http://www.pubs.acs.org/about.htm ( American Chemical Society )
http://www.epubs.siam.org ( Society for Industrial and Applied Mathematics )
http://www.particlephysics.ac.uk/
http://www.scidac.gov/physics/physics.html
http://www.doaj.org/
http://www.pubmedcentral.nih.gov/
http://www.informatik.uni-trier.de/~ley/db/
http://highwire.stanford.edu/
http://ocw.mit.edu/
http://www.pcug.org.au/~rossco/patentsearching.htm
http://www.cogsci.soton.ac.uk/psycoloquy/
http://www.rcpsych.ac.uk/publications/juornals.aspx
http://www.ssrn.com/
Thanks to kopertis12 ^_^
