Academic Research by Brookings institute — World Class Research on almost every possible topic.

An amazing encyclopedia of Economics — A very good resource on the discipline economics for the curious mind!

Articles on philosophical issues and discourse — This a free body of knowledge on almost every topic on philosophy for the curious minds!

Everything you need to know about Ethics — This is an amazing free online textbook by Stephen O’Sullivan and Philip A. Pecorino on the Ethics of Philosophy.

Excel Is Fun Video — An amazing free series of videos by Mike Girvin of Highline Community College. I cannot emphasis enough how these videos have transformed me as a person with basic knowledge in excel and other MS Office programs to an advanced user!

Financial and Managerial Accounting Resource — Great resource for Financial/Managerial Accounting, and Finance. However, I would say you must read with a little caution as there can be some little subtle mistakes in the materials

Great Resource! — Great free online resource for books, etc. in almost every field, especially engineering and the sciences.

Great resource to find books, lecture and textbook — This free resource link is great in helping you find materials on all topics, but must be consumed with caution as some of the materials may have some errors. Always cross reference whatever you’re reading with other well known and established sources.

Head First Labs — You can find all types of useful learning materials and other great resources for all your IT needs. Unlike other links I have posted here, these materials are for sale.

MIT Sloan Business School Letures — Great! Great!! free online lectures by some of the finest minds of MIT Sloan Business School on almost any subject you could possibly imagine. In actual fact, you could learn a ton of stuffs for free on your own spare time without paying any ridiculous tuition fees or a dime. Since you get all those for free, donations are recommended to keep this initiative going, but not a must.

The Afrobarometer Surveys — I good resource to start looking into some of the socio-economic issues in Africa

The Pew Research Institute — Excellent research findings by the Pew Research Center that one can access at no virtually no cost

Transportation and Policy — Excellent source for all you need to know about transportation policy, econometric, planning, and statistics and measurement.

Useful collections of free online books — A good selection of books from varied fields for the curious minds. Just read with caution and with a little amount of skepticism.

Very helpful source of research of all kinds — Great place to have a snapshot all types of research into current and past topical issues in almost every industry.

w3Schools Free Learning Tutorials — This great resource of w3Schools teaches you all you need to know about web page creation and design, as well as most popular relational database systems.