Drive for Uber or Lyft: If you're in a locale where you can find Uber or Lyft (or even one of the many competitors around the world such as China's Didi), you could easily make a respectable income. The hours are flexible and you can work as you see fit, making it perfect even if you currently have full-time employment but are looking to make some money on the side. 
Before we go any further, let’s talk about the difference between active income and passive income. This distinction will be paramount to your ability to produce serious capital on the web. So what is passive income? Passive income, if you don’t already know, is income that’s earned automatically. It doesn’t require much maintenance once that income stream has been created. However, it does require an enormous amount of effort at the outset to establish that stream of income.
By now, you've likely seen all the "gurus" in your Facebook feed. Some of them are more popular than others. What you'll notice is that the ads you see that have the highest views and engagement are normally the most successful. Use a site like Similar Web to study those ads and see what they're doing. Join their lists and embed yourself in their funnels. That's an important part of the process so that you can replicate and reverse engineer what the most successful marketers are doing.

Once you understand how everything works, and your expectations are set the right way, decide what you want to do. Do you want to become an affiliate marketer? Do you want to be a network marketer? Do you want to become a blogger and sell your own products? Squeeze pages, which are glorified sales pages that attract people and direct their attention towards a single action of providing their email address, are created in a variety of methods. The better they are, the more likely they'll convert.

High-ticket consulting or coaching: You could sell your own high-ticket consulting or coaching products from your website. You'll still need a website, merchant account, sales funnel, lead magnet and many other items. But you can easily earn a substantial amount of money from each individual customer, making it well worth the arduous setup required.