The Association for Computing Machinery (ACM) is the world's largest educational and scientific computing society that provides the computing field's premier Digital Library and serves its members and the computing profession with leading-edge publications, conferences and career resources.
Computer Science Archive is a part of arXiv, a curated open access research-sharing platform in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.
Free Online Dictionary of Computing (FOLDOC) is a searchable dictionary, including definitions of acronyms, architecture, electronics, jargon, networking, operating systems and programming languages.
TechRxiv (pronounced "tech archive") is an open, moderated preprint server for unpublished research in the areas of engineering, computer science and related technology.