You've probably heard of Robinhood -- it's a mobile-friendly investing app that's especially popular among younger investors.

The Vanguard Information Technology ETF (VGT) offers sector-specific exposure at a low fee, but has lacks full tech exposure.

Investing in stocks is a great way to build wealth, although getting started can feel daunting for many beginners looking to get into the market. But with this quick-start guide, you can begin buying ...