The original version of Barbara Winter’s book, Making a Living Without a Job, came out in 1993, and in it, she recommended creating multiple "profit centers," as opposed to building a single income stream. Over ten years later,  Robert Allen, the real estate entrepreneur, also wrote a couple books promoting the idea of multiple streams of income. Back then, building more than one source of income was difficult, time-consuming, and expensive. Fortunately, things have changed today. The Internet has made it easier, faster, and more affordable to generate multiple income streams.
* Freelance writing: Quality freelance writing takes tremendous effort. Ironically, the better the quality of your writing, the more you don’t want to freelance and just keep the articles for your own site. Freelancing is a great way to earn side income, however, it’s not really for me. I’ll probably take on one or two freelance jobs maximum per year and write no more than four articles a month elsewhere.

Regardless, it took me around 18 months to start turning a profit online. It started with around $100 per month, then grew to $200 per month. Then it kept growing and growing until, eventually, the money I earned online surpassed what I earned in my regular, 9-5 job. That was last year, and my online income is still growing. Believe it or not, it all came from starting this simple, yet effective, blog.

Crowdfunding is a newer way to invest, having emerged onto the scene just within the last few years. Most people have heard of sites like Kickstarter and GoFundMe, and a very similar concept exists for real estate. Developers are always looking to raise capital to fund their projects. Through the various online platforms, investors have access to these projects and can choose to invest in both residential and commercial properties. See the List of My Favorite Crowdfunding Sites.
There was a time when CDs would produce a respectable 4%+ yield. Nowadays, you’ll be lucky to find a 5-7 year CD that provides anything above 2.5% The great thing about CDs is that there are no income or net worth minimums to invest, unlike many alternative investments, which require investors to be accredited. Anybody can go to their local bank and open up a CD of their desired duration. Furthermore, a CD is FDIC insured for up to $250,000 per individual, and $500,000 per joint account.
"Create your own products and services," financial blogger and life coach Michael Tamez tells Bustle. "Any company you could ever work for can replace you at any time. However, your individuality can never be replaced! I encourage you to explore your creative talents and abilities more. What are you good at? How can you monetize that talent and perhaps even build a business out of it? Have you experienced something extraordinary in your life, and because of it, have tons of knowledge and wisdom to share? ... Creating your own products and services can create steady streams of residual income, which pays you continuously, even when you're not working. Essentially, you bust your ass once and get paid for the rest of your life — even when you're sitting on the beach, sipping coconut rum. Just remember this: When you invest in your creative abilities, you become irreplaceable!"
We’re currently at four and about to add a fifth. The more diverse the less risk. The less risk the lower the risk mitigation needs (ie insurance). We are high income but historically we’ve focused on the two w2 incomes and investment returns. At some early stages in your career focusing on your W-2 might yield better returns. Once you’ve got a certain level marginal gains from raises begins to decline. We’re at that stage where alternative income importance is increasing.
The income generated from sale of goods or services, or any other use of capital or assets, associated with the main operations of an organization before any costs or expenses are deducted. Revenue is shown usually as the top item in an income (profit and loss) statement from which all charges, costs, and expenses are subtracted to arrive at net income. Also called sales, or (in the UK) turnover.
3) Create A Plan. Mark Spitz once said, “If you fail to prepare, you’re prepared to fail.” You must create a system where you are saving X amount of money every month, investing Y amount every month, and working on Z project until completion. Things will be slow going at first, but once you save a little bit of money you will start to build momentum. Eventually you will find synergies between your work, your hobbies, and your skills which will translate into viable income streams.
Andrew Rafal, Founder and President of Bayntree Wealth Advisors in Arizona, recently told me about his push to get clients to diversify their income streams. The Great Recession feels like an eternity ago now that the economy is looking up, he says. The job market is strong and consumer confidence is through the roof. As a result, it’s possible people are getting a little too comfortable.