Promoting integrity in research and its publication
PhilPapers 是由哲学家团体维护的哲学综合索引和参考书目。PhilPapers 监控哲学研究内容的所有来源，包括期刊、书籍和开放获取档案。PhilPapers 还拥有哲学上最大的开放存取档案。
UC Library Search is the University of California’s new unified discovery and borrowing system that streamlines your search for UC Library collections, replacing Roger and Melvyl.
人大复印报刊资料
Academia.edu 是一个专门供科研人员使用的学术型社交网站，科研人员可以在网站上相互间免费分享和查看各自最新的科研论文，使学术交流变得更为畅通。
Every research begins here. Find papers from over 170m papers in major STEM journals. Save time and never re-search.
Promoting integrity in research and its publication