Computer Science

arXiv is a free distribution service and an open-access archive for nearly 2.4 million scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics. Materials on this site are not peer-reviewed by arXiv.

CiteSeerx is an evolving scientific literature digital library and search engine that has focused primarily on the literature in computer and information science.

Electronic archive of written research papers on various computer science topics.

DOAJ is a unique and extensive index of diverse open-access journals from around the world, driven by a growing community, and is committed to ensuring quality content is freely available online for everyone.

The LibreTexts approach is highly collaborative where an Open Access textbook environment is under constant revision by students, faculty, and outside experts to supplant conventional paper-based books.

The National Science Digital Library provides high quality online educational resources for teaching and learning, with current emphasis on the sciences, technology, engineering, and mathematics (STEM) disciplines—both formal and informal, institutional and individual, in local, state, national, and international educational settings. The NSDL collection contains structured descriptive information (metadata) about web-based educational resources held on other sites by their providers. These providers have contribute this metadata to NSDL for organized search and open access to educational resources via this website and its services.

Open Educational Resources (OER) are teaching and learning materials that you may freely use and reuse at no cost, and without needing to ask permission. Unlike copyrighted resources, OER has been authored or created by an individual or organization that chooses to retain few, if any, ownership rights.

Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit, and distribute them at no cost.