Another way to wring income out of stocks, even if they don't pay dividends, is to buy stocks that you expect will appreciate in value over time and then, when you need income, sell some shares. If you have a fat portfolio of such stocks when you retire, you might sell some shares every year to create a cash stream for yourself. Studying and choosing the stocks that will perform very well for you is easier said than done, though, so if you don't have the interest, skills, or time to become your own stock analyst, consider simply investing in a low-fee broad-market index fund or two, such as one based on the S&P 500. Here's how much you might accumulate over several periods if your investments average 8% average annual growth:

Passive income can help you achieve true financial independence, which by definition means having enough income to pay your living expenses for the rest of your life without having to work full time. Passive income is crucial to the FIRE (Financial Independence, Retire Early) movement, a movement dedicated to achieving financial independence and retiring early. Whether you’re committed to retiring early or not, passive income is a great way to make progress towards your retirement goals.

Many entrepreneurs reading this post will realize that they may not have the means to achieve true viral growth (where they have a Viral Coefficient of greater than 1). Rather than giving up, it is worth considering a hybrid viral model. In the hybrid viral model, you make up for the shortfall in customers by acquiring those through some other means such as paid search, or SEO.
The reason to make use or virality, the ease in spreading and sharing, is however a double-edged sword. We cannot forget that in this type of campaign, a large part of the control falls into the hands of the users, and we risk the message being misinterpreted or parodied. On the other hand, a successful viral campaign can work miracles for your brand’s results.