Earn residual income through referring consumers to an established product or service. Use your site to advertise to the company or companies you are interested in providing referrals for. Referral efforts can be coupled with informative e-books, seminars, or articles about the product or service. Build your newsletter lists in the same manner, the difference being that you are directing consumers to a third-party business.

Almost all of these ideas require starting a personal blog or website. But the great thing about that is that it's incredibly cheap to do. We recommend using Bluehost to get started. You get a free domain name and hosting starts at just $2.95 per month - a deal that you won't find many other places online! You can afford that to start building a passive income stream.
But first, let’s about talk passive income! What is passive income? There are many different definitions out there, but mine goes something like this: Passive income is all about building online businesses that can work for you, that allow you to generate income, and grow and scale, without a real-time presence. In other words, you don’t trade time for money. You build something up front that can continue to work for you over time.

The term “residual income” refers to the income that someone makes after their work has already been completed. An example of residual income is the earnings an author continues to make on a book after it has been published, when fans continue to purchase copies years later. Residual income is ideal because it is money that is being earned while doing nothing in the present moment to earn that money.
One of the best things about blogging is the ability to earn around the clock. We all long for the day when we can stop trading our time for money. This is truly when the glass ceiling is broken. If you are exchanging hours for income, you are eventually going to run out of hours. When you start generating residual income, you can still earn money even when you aren’t actively working.
Residual income is calculated as net income less a charge for the cost of capital. The charge is known as the equity charge and is calculated as the value of equity capital multiplied by the cost of equity or the required rate of return on equity. Given the opportunity cost of equity, a company can have positive net income but negative residual income.