Computer Science: Websites

arXiv is a free distribution service and an open-access archive for scholarly articles in the fields of physics, mathematics, computer science, quantitative biology, quantitative finance, statistics, electrical engineering and systems science, and economics.

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

Use CodingBat to access practice problems for Java and Python basics.

The Collected Algorithms of the ACM website contains software associated with papers published in the ACM Transactions on Mathematical Software and other ACM journals. The software is refereed for originality, accuracy, robustness, completeness, portability, and lasting value.

GitHub provides hosting for software development and version control using Git.

Open access course materials from MIT related to scripting, version control, data wrangling, editors, the command line environment, and more.

Stack Overflow is a question and answer site for professional and enthusiast programmers.

W3Schools is an educational website for learning web technologies online. Content includes tutorials and references relating to HTML, CSS, JavaScript, JSON, PHP, Python, AngularJS, React.js, SQL, Bootstrap, Sass, Node.js, jQuery, XQuery, AJAX, XML, Raspberry Pi, C++, C# and Java.