The S&P 500 includes 500 companies in various top-performing industries. Its broad representation means you’re not tying your funds to a tiny slice of the economy. Buffett likes it for everyday investors because it’s a simple yet effective way to spread your money around.Index funds are investments that track the return of a market index, representing a particular section of the stock market. The Standard & Poor’s 500 Index is one such example.In this day and age, you can earn passive income from more than ...