The 5 tech companies we will discuss are referred to as FAAMG: Facebook, Amazon, Apple, Microsoft, and Google. The earned revenues of those tech companies equated to 68% of US GDP growth in 2018. In terms of global traffic, Google, YouTube (which is owned by Google), and Facebook are the three most visited websites. With this, comes enormous power. For example, in terms of global traffic share, Facebook-owned sites controlled a huge segment of social media and messaging.