|  | PLOS วารสาร Open Access โดยสำนักพิมพ์ The Public Library of Science ในหลากหลายสาขา อาทิ Biology, Medicine, Currents, Genetics, Pathogens, Neglected tropical diseases |
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 | arXiv.org operated by Cornell UniversityOpen access to 830,015 e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, PathogensQuantitative Finance and Statistics. By Cornell University |
|  | Bioline International is a not-for-profit scholarly publishing cooperative committed to providing open access to quality research journals published in developing countries. BI's goal of reducing the South to North knowledge gap is crucial to a global understanding of health (tropical medicine, infectious diseases, epidemiology, emerging new diseases), biodiversity, the environment, conservation and international development. By providing a platform for the distribution of peer-reviewed journals |
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 | BioMed Central The leading biomedical open access publisher ; Publisher of 196 peer-reviewed open access journals |
| | CERN Document Server Over 900,000 bibliographic records, including 360,000 fulltext documents,\r\nof interest to people working in particle physics and related areas. |
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 | Chemistry Central a new service publishing peer-reviewed open access research in chemistry, from BioMed Central |
|  | ChemSpider ChemSpider is a free chemical structure database providing fast text and structure search access to over 26 million structures from hundreds of data sources.
เป็นฐานข้อมูลออนไลน์ที่ให้บริการสืบค้นข้อมูลโครงสร้างทางเคมีมากกว่า 25 ล้านโครงสร้าง ระบบรองรับการสืบค้นทั้งจากคำค้นง่ายๆ เช่น water ชื่อทางวิทยาศาสตร์ คำ่ย่อ เครื่องหมายการค้า สูตรเคมีแบบง่าย ทั้งนี้ผลลัพธ์จะเชื่อมกับฐานข้อมูลต่างๆ ที่น่าเชื่อถือมากกว่า 400 ฐาน มีการแสดงผลทั้งข้อความ ภาพสองมิติ และภาพสามมิติ |
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 | CiteSeer Scientific Literature Digital Library |
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 | ELSEVIER (Open Access) Access to quality research is vital to the scientific community and beyond. We support sustainable access and work hard to provide a range of open access options alongside our access initiatives to ensure everyone can read, use and trust the latest research. |
|  | HighWire Press A division of the Stanford University Libraries, HighWire Press hosts the largest repository of high impact, peer-reviewed content, with 1187 journals and 4,892,629 full text articles from over 140 scholarly publishers |
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| Information Bridge Documents and Citations in physics, chemistry, materials, biology, environmental sciences, energy technologies, engineering, computer and information science, renewable energy, and other topics of interest related |
|  | OAIster Gives access to a large number of eprints archives and electronic resources and through the OAI harvesting protocol reveals digital resources previously \hidden\" from users behind web scripts." |
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 | Organic ePrints Open access archive for papers related to research in organic agriculture. |
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