Academic
Paper search, preprints and reference management — infrastructure for research and writing.
arXiv物理数学计算机预印本，AI 论文首发地arxiv.org
Semantic ScholarAI 驱动的论文检索与自动摘要semanticscholar.org
ResearchGate科研社交网络，可向作者索要全文researchgate.net
JSTOR人文社科期刊archive，部分内容免费jstor.org
Overleaf在线 LaTeX 协作编辑，写论文标配overleaf.com
DOAJ开放获取期刊目录，全部免费全文doaj.org