The Dropbox Controversy The two most popular cloud services in the market among mere mortals are Gmail/Google Docs and Dropbox. To many, these have become the Mecca of file sharing. However, questions and doubt always accompany popularity. For the last couple of years, Google has been subjected to a barrage of criticism. Google, as we all know, provides many free cloud services, and this has become both their strongest selling point and also their weakest feature. Many question the sincerity of the free service. Many critics think that no company will give away anything unless they get something in return.