By Steve Symington When you consider the best places to put your money to work as a stock market investor, it’s helpful to understand how and where various publicly traded companies generate revenue and earnings. To that end, in 1999 two giants in the world of finance, Morgan Stanley Capital International MSCI and S&P Dow Jones Indices, created the Global Industry Classification Standard. Today GICS is the most widely used industry classification system, with the aim to effectively “capture the breadth, depth, and evolution of industry sectors.” What Are Stock Market Sectors?A stock market sec…