Established n 2006, Hubpages is one of the oldest writing sites where one can earn by publishing articles. Medium was established in 2012 and is also one of the best platforms for writing. I have not tried any of these but I have read reviews that say these are the top two sites for writers in terms of making money and building writing career. However, they also say, it is really difficult to earn money, it might takes years before you begin to see earnings.