You can break stock investing into two different styles: growth and value. Growth stocks have outperformed lately as the S&P 500 Growth index returned 37.9% over the last year through Nov. 22. That's about 10.9 percentage points higher than the S&P 500 Value index.Naturally, you'll want to pick a company that can sustain the momentum. Fortunately, Amazon (AMZN 3.18%) still has strong growth potential. That may surprise some, given how fast the company's sales have grown since its 1997 initial public offerin ...