Amazon started out in 1994 selling books online, and today, it dominates the entire e-commerce industry. However, the company has also expanded into other areas like streaming, digital advertising, and cloud computing. The stock has soared over the past decade, and while e-commerce remains the company's largest source of revenue, its other segments are making notable contributions to its profits and success. Sea Limited (SE -2.73%) bears a striking resemblance to Amazon in the latter's earlier days. It draw ...