Information Systems Research Guide

Online Courses and Lectures
1. edX: Offers free courses from top universities like MIT, Harvard, and UC Berkeley. Notable courses include MIT's "Introduction to Computer Science and Programming Using Python."
2. Coursera: Provides free courses from universities like Stanford, Princeton, and the University of London. Courses such as Stanford's "Machine Learning" by Andrew Ng are very popular.
3. Khan Academy: Covers fundamental computer science topics including algorithms, data structures, and cryptography.
4. MIT OpenCourseWare: Offers a vast array of computer science courses for free, including lecture notes, assignments, and exams.

Tutorials and Interactive Learning
1. Codecademy: Offers interactive coding tutorials in various programming languages, including Python, Java, and JavaScript.
2. freeCodeCamp: Provides a comprehensive, self-paced coding curriculum with projects and certifications in web development, data visualization, and more.
3. W3Schools: A resource for learning web technologies online, including HTML, CSS, JavaScript, PHP, and SQL.

Textbooks and Reading Materials
1. GitHub Education: Offers a Student Developer Pack that includes access to free software and learning resources.
2. OpenStax: Provides free, peer-reviewed, openly licensed textbooks, including computer science topics.
3. Project Gutenberg: Hosts over 60,000 free eBooks, including classics in computer science.

Coding Practice and Competitions
1. LeetCode: Features coding challenges and competitions to help students prepare for technical interviews and improve their problem-solving skills.
2. HackerRank: Offers coding practice problems across various domains, including algorithms, machine learning, and databases.
3. Codewars: Provides a gamified platform for practicing coding problems in multiple programming languages.

Forums and Communities
1. Stack Overflow: A question-and-answer site for programming and development issues, where students can ask for help and contribute to discussions.
2. Reddit: Various subreddits like r/computerscience, r/learnprogramming, and r/coding can be helpful for discussions, resources, and advice.
3. GitHub: A platform for hosting and collaborating on open-source projects, where students can contribute to projects and learn from others' code.

Documentation and Reference
1. MDN Web Docs: A comprehensive resource for web development documentation and tutorials on HTML, CSS, and JavaScript.
2. GeeksforGeeks: Offers a wide range of articles and tutorials on computer science topics, programming languages, and interview preparation.