OA数据库

开放存取期刊的索引平台，提供高质量、同行评议期刊 DOAJ is a unique and extensive index of diverse open access journals from around the world, driven by a growing community, committed to ensuring quality content is freely available online for everyone.

　OpenAccessLibrary(OALib)是一个以开放访问元数据库为基础的搜索引擎，它提供了超过5,710,335篇开放源代码论文，涉及数学、物理、化学、人文、工程、生物、材料、医学和人文科学，所有论文都可以免费下载。 Open Access Library (www.oalib.com) is an academic search engine and publisher. You can download research papers for free and submit your paper to it. It is a shared academic database.

收藏了物理、数学、非线性科学和计算机科学方面的数字化「预印本」出版物。 arXiv.org e-Print archive

期刊总量：6981种期刊文献：4359850篇 开放获取资源集成检索系统

开放获取论文一站式发现平台 paperc

国外注册，国内运作，240多种开放存取、在线、同行评审、多学科的期刊、会议论文和书籍 Scientific Research Publishing is an academic publisher with more than 200 open access journal in the areas of science, technology and medicine. It also publishes academic books and conference proceedings.

ChinaXiv.org 中国科学院科技论文预发布平台 ChinaXiv.org 中国科学院科技论文预发布平台

自有预印本库，集成多家数据，超200万个搜索结果 OSF

为生物学家专有的预印本文献库 bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution

美国环境保护署提供出版物搜索、预览和下载等服务 Website of the U.S. Environmental Protection Agency (EPA). EPA's mission is to protect human health and the environment.

发展中国家的多种开放存取期刊全文 +Bioline International Official Site (site up-dated regularly)

为组织和个人作者提供出版服务和解决方案，目前出版大约和其他机构拥有的约600种期刊 Publish, distribute and make your research globally recognized. Discover our services for scholarly journals, books and conference proceedings.

FrontiersMediaSA是同行评审的开放获取科学期刊的学术出版商，目前活跃于科学，技术和医学领域。它由一群神经科学家于2007年创立，后来扩展到其他学术领域。Frontiers总部位于瑞士洛桑 Open access publisher of peer-reviewed scientific articles across the entire spectrum of academia. Research network for academics to stay up-to-date with the latest scientific publications, events, blogs and news.

每年发表2万多篇论文，世界上最大的同行评审，完全开放存取期刊出版商之一 Just a moment...

创立于1999年，生物医学领域的、世界上最大的OpenAccess出版商，出版近300种期刊 BMC, research in progress

超过65万篇物理学及相关学科的论文、预印本等全文 Access articles, reports and multimedia content in HEP

PLOS出版8种生命科学与医学领域的开放存取期刊 Home - PLOS

NASA Technical Reports Server (NTRS) NASA Technical Reports Server (NTRS)

Fastly error: unknown domain cn.arxiv.org