If you have specialized knowledge in a certain topic, you can put together an online course to teach others. For example, if you have experience in real estate investing, you can create an online course “Real Estate Investing 101”. The benefit of an online course is that once you create the course material, you can sell it to as many people as you want.
I knew I didn't want to work 70 hours a week in finance forever. My body was breaking down, and I was constantly stressed. As a result, I started saving every other paycheck and 100% of my bonus since my first year out of college in 1999. By the time 2012 rolled around, I was earning enough passive income (about $78,000) to negotiate a severance and be free.

As interest rates have been going down over the past 30 years, bond prices have continued to go up. With the 10-year yield (risk free rate) at roughly 2.55%, and the Fed Funds rate at 1.5% (two more 0.25% hikes are expected in 2018), it’s hard to see interest rates declining much further. That said, long term interest rates can stay low for a long time. Just look at Japanese interest rates, which are negative (inflation is higher than nominal interest rate).
* I use Personal Capital to track all my finances in one place. It’s much easier to use their free software to follow 28 accounts on one platform than to log into various accounts to check my balances. They’ve also got great tools for x-raying your portfolio for excessive fees, recommending a more optimized asset allocation, and planning for retirement with their Retirement Planner.

eBay Store: It’s now easier than ever to run an online eBay store. You can, of course, acquire products to resell on eBay. But you can also create an online store to market products that others are selling on eBay and share in the commissions generated by the sales. Recently I interviewed a family friend who started her own eBay store and now makes five figures from home. Check out the interview here.
Not everyone is eager to do this, but consider renting out space in your home for extra income. You could take in a full-time boarder, for example, but you needn't be that extreme. Instead, consider renting out an extra room via a service such as airbnb.com or homewaway.com. If you do so for just 20 nights a year and charge $100 per night, that's $2,000 in pre-tax income! If your home is in a desirable spot, maybe you can rent out the whole house for just two weeks in the summer, charging $2,000 per week and collecting $4,000.
* 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.

Since I knew I’d eventually be losing my day job income, I had to set realistic goals. There was no way I was going to make a six figure salary blogging and working online after only 2 years but I thought it might be possible to cover our monthly expenses for a few months while I took time off and looked for a new job. I already had some secondary sources of income and there were others that I specifically tried to build up.

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“Where a lot of people mess up is they try to build a business or create a product that serves everybody, and by trying to serve everybody, you serve nobody. You have to specialize and niche down and find a market with a pain point that you, based on your experience, based on your education and based on your passion, can help,” he says. Your earnings will directly reflect how well you serve that particular audience, and the more your message resonates with them, the more opportunities you’ll have to sell to them.
An obvious example is over exposure to bank stocks, which have been excellent investments for over a century.  Though a foundation of most portfolios, bank stocks do involve more risk at certain stages of the economic cycle than many realise.  Being less exposed to bank shares in the last few months could have preserved some capital.  So, a more diversified approach can help mitigate some of these risks.
Up to 2012, the taxpayer could opt for French savings income to be subject to taxation at source, with no further income tax payable in their annual tax return. This is known as a prélèvement forfaitaire libératoire (PFL). This option was abolished as of 1st January 2013, with the exception of taxpayers with income of less that 2,000 Euros per annum.
E-Commerce is taking off in India. One of my friend runs ebay shop for second income and easily earn Rs 1 Lac per month. You don’t need huge investments to start your store. Besides ebay you can create your own e-commerce website without any hassles. Recently Shopify set shop in India. Shopify is leading E-commerce platform & provide ready solutions to launch e-commerce store i.e. no need of website designing.
Given the growth in the sharing economy, your junk can start to pay for itself. For example, if you have some awesome vintage furniture inherited from your grandmother sitting in a storage unit, you can rent this out to photographers for their “styled shoots” which are becoming all the rage. If your furniture is more modern but you still can’t bear to get rid of it – perhaps a home stager will be interested.
Why did P2P lending get a liquidity ranking of 6? It is quite possibly the most illiquid investment option you listed. You said you rank liquidity by “difficulty level of withdrawing your money without a massive penalty”, and for Lending Club notes, it’s not only difficult and extremely time consuming to sell all of your notes in their super illiquid market, but you would have to sell your notes at large losses to hope to get others interested in buying your notes. On top of that, it is impossible to withdraw your money any other way other than just waiting for interest/principal to pay off every month until maturity in 3 to 5 years. You can’t just one day tell Lending Club “I want to quit, please give me my money back.” One can even argue that it is less difficult to sell a home (in order to “withdraw” the money invested) than to withdraw all of their money from a P2P loan portfolio because it is very possible to sell a home before 3 to 5 years.
I cut back on medicolegal work to free up time and reduce stress. I spend most of my time on medical directorship work and clinical practice. Free time is spent on exercising, travel, time with family, and blogging. I spend virtually no time on the other income streams at this point. Getting the plate spinning can be tough but then the momentum keeps them turning.
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There are a couple of problems with direct investment in real estate though. It’s expensive to buy even a single property, a minimum of tens of thousands of dollars, and there’s no way most investors can build a portfolio of different property types and in different regions to protect from those risks when you have all your money in just one or two investments.

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This is a venture that is growing rapidly. You can create videos in just about any area that you like — music, tutorials, opinions, comedy, movie reviews — anything you want . . . then put them on YouTube. You can then attach Google AdSense to the videos, which will overlay your videos with automatic ads. When viewers click on those ads, you will earn money from AdSense.
​Affiliate marketing is the practice of partnering with a company (becoming their affiliate) to receive a commission on a product. This method of generating income works the best for those with blogs and websites. Even then, it takes a long time to build up before it becomes passive. If you want to get started with affiliate marketing check out this great list of affiliate marketing programs.
Most of us think of investment income as just the cash flow we get from bank interest, bonds, share dividends and property rents, some of which comes via a super pension.  But a more complete view is to also consider how growing the value of your investments can add to your spending potential.  This total return approach generates income from both income and growth to optimise spending from your portfolio across all market cycles, aligning cheap and expensive investments to your goals.

You’re right Ed, it does require capital to get income from a rental property. However, I started hustling when I was a teen, baby-sitting, teaching younger kids the piano, doing homework with middle schoolers, being a French and Spanish tutor, none of which requires an initial investment. As do pet sitting, housekeeping, lawn mowing, house painting, and many gigs around.
But two months later, with the economy slowing down after the financial crisis, his firm began laying people off, and Flynn was informed that after his current projects were finished, he also would be out of a job. At the same time, he couldn’t help but notice that in the LEED exam forums he had frequented, people were referring to him as an expert and directing questions his way. He began to think he might capitalize on that.
Jennifer Barrett, chief education officer at Acorns and editor-in-chief of Grow, agrees with Goudreau. "Developing steady passive income streams can be a great way to supplement your regular paycheck and boost your bottom line," she tells Bustle. "Just be sure to do your homework ahead of time so you're aware of the costs and risks involved and realistic about the income you can expect. Investing regularly in the stock market can provide earnings over time from compounding market returns. But there are also ways to create steady streams of passive income that pay out at regular intervals — from investing in stocks that pay dividends and bonds that pay interest to investing in a rental property or renting out your own home."

Bonnie Breen, head booker at Bizzykidz Agency says there are some classic costly mistakes to avoid when it comes to working with agencies: "Don't pay subscription fees, yearly fees or joining fees. You will, with all agencies, be asked to cover the costs of your child's model cards or entry into their model book, but no agency should charge yearly fees to be represented by them."
Amazing that you saved between 50% to 75% living in NYC…I think that is one thing holding me back…the cost of living here. I’d like to invest in real estate, but I can barely afford to buy a place to live. I don’t need a large income to be happy, but I probably do need an income to support living in NYC as we don’t plan on leaving. The only thing I’m doing at the moment is saving in my 401K, IRA and a I dabble in stocks and P2P lending.
However, until we get another reset in valuations (I’m calculating a 40% to 50% correction is justified ), I’ve moved largely to the sidelines. Beginning in July 2013, I began slowly reducing equity exposure and am now sitting firm at 40% with the balance in various forms of 5 yr cd’s and short duration bonds. This is down from over 60% when I ramped up to take advantage of the March 2009 lows.
Lots of good insights here. I’ve just recently gotten my own website for making online income. Also gotten a website for my fledgling voice over business. There’s a lot to learn when it comes to making passive income online, especially if you’re not financially savy, this is a very helpful blog in that regard, with all the useful tools and reference materials, it certainly removes a lot of guesswork.
Flynn, who blogs at Smart Passive Income and discusses his secrets at the Smart Passive Income podcast, defines passive income as “building online businesses that take advantage of systems of automations that allow transactions, cash flow and growth without requiring a real-time presence. We don’t have to trade our time for money one to one. Instead, we invest our time upfront, creating valuable products and experiences for people, and we reap the benefits of that time invested later,” he says, adding, “It’s not easy. I just want to make sure that’s clear.”
These are just a few ideas to get you thinking about what you can do to create a multi-streamed income. Your project might turn into a full-time job in itself or it could just be a back-up plan that gives you peace of mind while you continue to work a day job. Finding extra work that you really enjoy can be a great way to share your skills, meet new people, and take your personal finances to the next level. 
"Rental properties provide a source of passive income and the possibility of overall appreciation of the property with tax advantages," Lou Cannataro, partner at Cannataro Park Avenue Financial, tells Bustle. "Our generation and those to follow will not have pensions, and social security is 'iffy,' at best. Rental properties can provide that constant income (people always need a place to live) that is not directly tied to the marketplace and one cannot outlive."
Awesome article…if this does not give somebody a clear roadmap, they probably were never going to get there in the first place! I’m kind of like you trying to figure out where to place “new” money and maturing CD’s in this low interest environment. Rates have to go up eventually…I dream of the days again where you can build a laddered bond portfolio paying 8%. I plan for a 5.5% blended rate of return, with big downside protection.
Lending Club (U.S. Residents Only) – I talk about Lending Club in every one of my income reports, because I still believe it’s the best source of passive income, even though it’s not my largest source.  You can get started for as little as $25, and over the past 2+ years, my interest rate has been 7% or higher, which I think is very good given the relatively low risk involved.  This is even more true given the recent market downturn. You can read about how I select my investments here.
Most credit card companies offer sign-up bonuses to entice you to open a credit account with them. As long as you don’t spend money just to hit the minimum balance and always pay your balance on time, this can have a minimal impact on your credit score while earning you hundreds – or even thousands – of dollars a year. Some of the best travel credit cards offer 100,000 points to new accounts when you meet reasonable spending requirements.

Although renting out your room or home can also be a side hustle to make extra cash, it's also a great source of passive income. However, another route to go is to get an income property just for the purpose of renting it out. This is even better if you live in a touristy area, because you can probably make even more than usual during the high tourist seasons.
What spurred this blog post was an idea put forth by my friend at ESI Money in which he talks about how the first million is the hardest. ESI shares how his net worth growth has accelerated. The first million took 19 years of work (the clock starts when he started working, not at birth!) but the 2nd million took just 4 years and 9 months. J Money took this same idea and started at $100k, which took him 7yrs 11mos. Each of the next $100k milestones took close to 18 months each to reach.