World wide web or internet is like a hidden treasure, where with some browsing skill you can find useful and free stuff.
Don’t believe me?

Check the FREE stuff links at ‘catagory’ or only “FREE Stuff” page of this blog and you would be pleasantly surprise to find good free.
I personally search for each and every link, so check the links and get the free stuff. Even reviewing a paid or sponsored post, you would notice that I am neutral about those posts. I don’t usually suggest those links or products directly.
TIP:
Remember that Government organizations, Universities or non profit services offer really useful and FREE tutorials, so whenever you search look for these kind of sites for information or tutorials. The first site at this post is the most reliable link, so you can trust this site.

*1- ADUni.org is the website of the alumni of ArsDigita University (ADU). ADU was a one-year, intensive post-baccalaureate program in Computer Science based on the undergraduate course of study at the Massachusetts Institute of Technology (MIT).

This site serves to carry on the school’s mission of supplying free education. ADUni.org provides all course materials and lectures generated during the program to the general public for free use.
Mission: “To offer the world’s best computer science education, at an undergraduate level, to people who are currently unable to obtain itit”

What the site offers?
This site features Computer Science lectures, coursework, and exams from ArsDigita University.

Courses
- Math for Computer Science
- Structure and Interpretation of Computer Programs
- Discrete Math
- How Computers Work
- Object-oriented Program Design
- Algorithms
- Systems
- Web Applications
- Theory of Computation
- Artificial Intelligence
- Unix Workshop
- Database Management Systems
- Applied Probability

Link to course page: Courses
Links to frequently asked questions: FAQS

Note: If you internet connection is slow then you can buy the course material on DVD (which is very cheap), $60 for the 4-DVD set and free shipping anywhere in the world. These DVD’s are stuffed full of hundreds of hours of lecture videos, colloquia, problem sets, exams, notes and solutions. Every course-related bit of information you can find on this site is there, and you don’t have to download any of it.

*2- Tech Tutorials offers a directory containing many free tutorials for IT professionals, hobbyists, and home users. The site also contains discussion forums, a free job search, free tech magazine subscriptions, white papers, and other technical reference materials.
Mission: (In their words) “Our goal is to help you solve your computer problems and learn new technologies using the many existing free tutorials available on the internet.”

Note: Before accessing these kind of sites, please read carefull about each and every course which is offered, because all are not free.

*3- Learnthat.com LLC was founded in 1999 to offer free web based training to users of all levels. Based in Columbus, Ohio, Learnthat.com also designs online courses and offers consulting on computer and professional education.

Note: Check for free tutorials and links to free online tutorials and courses.

*4- My Tutorials offers tutorials in thousands of topics authored by experts just like you.
- Computers and software

Suggest me more links to share at this blog.

Related post:

- Free tutorials about internet and World Wide Web