https://dspace.mit.edu – MIT’s institutional repository built to save, share, and search MIT’s digital research materials including an increasing number of conference papers, images, peer-reviewed scholarly articles, preprints, technical reports, theses, working papers, and more. http://citeseer.ist.psu.edu/ – Scientific literature digital library and search engine that focuses primarily on the literature in computer and information science. CiteSeerx aims to improve the dissemination of scientific literature and to provide improvements in functionality, usability, availability, cost, comprehensiveness, efficiency, and timeliness in the access of scientific and scholarly knowledge. http://www.doaj.org/ – Free, full text, quality controlled scientific and scholarly journals. http://www.pubmedcentral.nih.gov/ – The U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature. http://scholar.google.com/ – Google Cendekia menyediakan cara yang mudah untuk mencari literatur akademis secara luas. Anda dapat mencari di seluruh bidang ilmu dan referensi dari satu tempat: makalah peer-reviewed, thesis, buku, abstrak, dan artikel, dari penerbit akademis, komunitas profesional, pusat data pracetak, universitas, dan organisasi akademis lainnya. Google Cendekia akan membantu Anda mengidentifikasi penelitian paling relevan dari seluruh penelitian akademis. http://www.arsip.lipi.go.id/ – This service is enabled by enormous supports from the Indonesian Institute of Sciences (LIPI), the Indosat Mega Media (IM2) during the initial period (2003-2007), the Indonesia Focal Point of Committee on Data for Science and Technology (CODATA Indonesia) and all institutions providing their databases for public access. http://www.informatik.uni-trier.de/~ley/db/ – PubMed Central is a free digital archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH’s National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM). http://libra.msra.cn/ – Microsoft Academic Search. http://www.jstor.org/ – More than a thousand academic journals and over 1 million images, letters, and other primary sources, JSTOR is one of the world’s most trusted sources for academic content. http://www.biomedcentral.com/ – BioMed Central is an STM (Science, Technology and Medicine) publisher which has pioneered the open access publishing model http://highwire.stanford.edu/ -The digital dissemination of 1433 journals, reference works, books, and proceedings. HighWire also offers a complete manuscript submission, tracking, peer review, and publishing system for journal editors, Bench>Press. HighWire provides outstanding technology and support services, and fosters a dynamic and innovative community, enhancing the strengths of each of its members. http://itunes.berkeley.edu/ – ACCESS & DOWNLOAD COURSES on your computer or MP3 player, LISTEN TO EVENTS about the Arts, Education, Politics, Science and Technology, BE CONNECTED with what’s happening at UC Berkeley. http://ocw.mit.edu/ – MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world and is a permanent MIT activity. http://www.pcug.org.au/~rossco/patentsearching.htm – http://ilmukomputer.com/ http://www.cogsci.soton.ac.uk/psycoloquy/ – Psycoloquy is a refereed international, interdisciplinary electronic journal sponsored by the American Psychological Association (APA). http://www.rcpsych.ac.uk/publications/juornals.aspx – http://www.ssrn.com/ – Social Science Research Network (SSRN) is devoted to the rapid worldwide dissemination of social science research and is composed of a number of specialized research networks in each of the social sciences.