At the moment eLearning resources are not so well-known and widespread. I guess many employers still often feel suspicious to such online credentials. In another case, if the employer himself has taken the online educational courses, he or she may highly appreciate your achievements.
But the situation is changing. With the growth of online courses popularity grows also online certificates credibility.
There you can find out more about the most interesting apps for online education, leaders of the market today and also opportunities for startups in this niche.