E-learning shouldnt be costly , at least thats what edx  thinks . First of all one will ask what is edx and the whole e-learning opportunity about
  1. Founded by the Massachusetts Institute of Technology (MIT) and Harvard University, edX offers online learning to on-campus students and to millions of people around the world. EdX is building an open-source online learning platform and hosts a web portal at www.edx.orgfor online education. source : edx.org

Yes! they are offering everyone in ghana an opportunity to study online for free . You dont need to pay anything to study online but if you want a certificate you have to pay a little few mostly under 25$.

Just visit www.edx.org , sign up and start your course. There are more than 400 courses available for free