Online Courses

For a few years, MIT (has) published its courses on the Internet in a project called "Open Course Ware (OCW)". Last year, online courses increased more and more(the number of online courses increased). There are many websites that have offered many courses online on the Internet for free, and you can get a certification. I have used websites like edx.org and coursera.org. I took the electronics course in edx.org last year and enjoyed it. The Edx.org website has powerful tools that can help me to learn like a real course. In the electronics course that I have taken, this website had a powerful simulation and to make my (own) simulation on that website all I needed was a browser. The Edx.org organization has made the code of that website open source (open source means any one can read athe programming code). Not like before, the internet is now full of a massive amount of courses onin any kind of fields.(many different fields/various fields)

Good work Mohamed. The corrections marked in yellow are parts that definitely need changed. The parts in brackets are my suggestions to make the writing better. :)