Should You Invest in Exchange Traded Funds? There are hundreds of ETFs available. Should you invest in them? Share | Related Content The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Alternative Investments - Going Mainstream Alternative investments are going mainstream for accredited investors. It’s critical to sort through the complexity. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.