You can select any of the above-mentioned, based on your interest, skill, and capability to generate a second income source. However, these are just to name a few, there exists multiple ways to generate secondary income channel. You just need to identify the right one, which suits you the best. Remember there is no shortcut to success and you need to work hard to be successful and rich in the long run!
Another great way to get started is to identify an area of interest you have. For instance, Robert Duff has been successful in building passive income by selling books on Amazon. Then, go out and start talking to people. Ask them, “What are you struggling with right now? What are your biggest pains? What’s something you wish existed that doesn’t?” That’ll give you some ideas about where to get started.
There are dozens of ways to generate passive income. However, the option you select has to do with two metrics: time and money. Either you have a lot of time or a lot of money. Most people usually don't have both. But, if you have a lot of money, generating passive income almost instantly is easy. You can buy up some real estate and begin enjoying rental income. Or, you can invest in a dividend fund or some other investment vehicle that will begin generating a steady income for you.
I would throw in some caution here: if your spouse works at the same company, or in the same industry as you, you are not diversified, and should something happen, you could be in a world of hurt.  Companies do go out of business, companies do lay employees off.  There is nothing wrong with working together, but realize that you are not diversified and you should be trying to maximize other income streams as a result.
It seems like common sense but it’s so easy to rely on your day job income to pay for everything. I used to get paid a lot of money to go into work and sit at my desk for 8 hours a day and then go home. No manual labor required, no staying late hours(in my case at least) and a pretty low stress environment. I loved my job and without fail, every two weeks on the dot, a nice fat paycheck would show up in my bank account. All I had to do was show up at work every day and I was pretty much guaranteed to get paid.
Ebooks are one of my favorite sources of passive income. Now, you can do this the simple way and just publish it on Amazon's KDP. Or, you can go all out and build yourself a book funnel. Book funnels are powerful, but they won't be fully passive. For example, if you do a free-plus-shipping offer for your ebook (converting it into a physical book), you'll need to create some one-time offers (i.e. extra training) and up-sells (i.e. an audiobook). But, a book funnel can be very powerful.

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.
The most liquid of the private investments are investing in equity or credit hedge funds, real estate funds, and private company funds. There will usually be 6 month – 3 year lockup periods. The least liquid of the private investments are when you invest directly into private companies yourself. You might not be able to get your money out for 5-10 years, depending on the success of the company and upcoming liquidity events.

If you watched the video, he goes into a discussion about shocks (about 8 minutes in) like bad investments but how they don't really matter as much if r (rate of return) is greater than g, the rate of economic growth. If r = 5% and g = 1%, then you can lose 80% (the difference) and still be ahead because the return on the remaining 20% has paced with economic growth.
I prefer assets that make me a high return for the lowest amount of work possible (semi-passive involvement). And assets that pay me in several unique ways. Cash flow is only one way RE makes money for me. I also get principal reductions, appreciation, tax advantages (depreciation), and I control the rental increases on a yearly basis. Plus a majority of the capital is provided by the secondary market on 30 year fixed low interest rate debt.
* 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.
Domain names cannot be replicated. If one is taken, the only recourse would be to approach the owner to discuss a sale. While there are other variations you could choose, sometimes owning a certain domain (especially if it is attached to your business) can be worth the premium. Often, people will scout out domain names that are still available, buy them, and then sit on them in order to sell them down the road. Depending on who may want the domain down the road, you could sell it for a large markup.
Ethiopia’s location gives it strategic dominance as a jumping off point in the Horn of Africa, close to the Middle East and its markets. Landlocked, it borders Eritrea, Somalia, Kenya, South Sudan, and Sudan—its tiny neighbor, Djibouti, is also its main port. Ethiopia’s huge population of about 102 million (2016) makes it the second most populous nation in Africa, after Nigeria. Although it is the fastest growing economy in the region, it is also one of the poorest, with a per capita income of $783. Ethiopia’s government aims to reach lower-middle-income status by 2025.
Well written piece, but I question the core premise. Why the fascination with maximizing “income” (passive or otherwise). Shouldn’t the goal simply be to maximize long-term after tax growth of your entire portfolio? If this takes the form of dividend paying stocks, so be it. But what if small caps are poised to outperform? What if you want to take Buffet’s or Bogle’s advice and just buy a broad market index like the S&P 500, (no matter what the dividend because you’ll just have it automatically reinvested to avoid the transaction fees).
Unfortunately, it took a while for the real lessons to sink in. I was probably 20 or 21 when I read Rich Dad, Poor Dad the first time, which means I wasn’t exactly sure who I was yet. I knew I wanted to work hard and make money, but I wasn’t sure how. This made me a prime candidate for  multi-level marketing pitches, and the dream of “getting rich quick.”
Flynn has created many different products. While his LEED exam is what got him started, he has both earned a commission from selling other people’s products and offered a commission to others who would sell his wares, and also recently created his first software,, after realizing that most online podcast players offered only the basic stop/start/volume features. He hired a development team to create a superior one, which was a success from day 1. “We sold out 250 beta licenses in less than 24 hours, because I was addressing a need but also, I had built up an audience and trust with them … When you build that amount of trust with your audience, whatever you come out with, they will love.”
Think about it.  If you are saving for retirement, you are trying to save enough in investing to generate enough income to replace your primary salary.  Let’s take my friend’s example above: $50,000 a year.  To generate $50,000, you would need to have almost $1,700,000 saved, and be able to generate a 3% cash flow on that money (which is reasonable if invested in dividend paying stocks).
However, I think for those who are willing to do what it takes, the sky is the absolute limit. As an example, I’m trying to take a page out of FinancialSamauri’s book and create an online personal finance and investing blog. It is an enormous undertaking, and as a new blogger, there is a seemingly endless amount of work to be done. That said, I hope that one day I can not only generate some passive income from the hours of work I have put and will put into the project, but I hope to be able to help OTHERS reach their financial goals.

It’s been almost 10 years since I started Financial Samurai and I’m actually earning a good income stream online now. Financial Samurai has given me a purpose in early retirement. And, I’m having a ton of fun running this site as well! Here’s a real snapshot of a personal finance blogger who makes $150,000+ a year from his site and another $180,000 from various consulting opportunities due to his site.

Antelope Valley Big Sur California Coast Ranges Cascade Range Central California Central Coast Central Valley Channel Islands Coachella Valley Coastal California Conejo Valley Cucamonga Valley Death Valley East Bay (SF Bay Area) East County (SD) Eastern California Emerald Triangle Gold Country Great Basin Greater San Bernardino Inland Empire Klamath Basin Lake Tahoe Greater Los Angeles Los Angeles Basin Lost Coast Mojave Desert Mountain Empire North Bay (SF) North Coast North Coast (SD) Northern California Owens Valley Oxnard Plain Peninsular Ranges Pomona Valley Sacramento Valley Salinas Valley San Fernando Valley San Francisco Bay Area San Francisco Peninsula San Gabriel Valley San Joaquin Valley Santa Clara Valley Santa Clara River Valley Santa Clarita Valley Santa Ynez Valley Shasta Cascade Sierra Nevada Silicon Valley South Bay (LA) South Bay (SD) South Bay (SF) South Coast Southern Border Region Southern California Transverse Ranges Tri-Valley Victor Valley Wine Country

Let’s say a company earns $1 a share and pays out 75 cents in the form of a dividend. That’s a 75% dividend payout ratio. Let’s say the next year the company earns $2 a share and pays out $1 in the form of dividends. Although the dividend payout ratio declines to 50%, due the company wanting to spend more CAPEX on expansion, at least the absolute dividend amount increases.
Realtyshares is pretty cool. It allows you invest alongside other real estate investors in smaller increments than traditional syndicated investments. You typically invest in debt (tax liens) or equity (take a small ownership) in exchange for putting up capital. Rates can vary from 6% all the way to 19%. There are certainly risks, but that’s what’s great about it… you can spread it across several investments. I’ve done about a dozen deals with them over the past 2 years and so far so good!
While some people tend to use a savings account at the same bank where they have their checking account, make sure it's a high-interest one, not just a convenient one. "For short-term savings that you have parked in a savings account for easy access, you can often make more money just by researching whether you're getting the best interest rate," Goudreau says. "While many traditional banks offer as little as 0.1% interest on savings, online banks tend to offer higher interest rates. By switching to an account that offers 1% interest or more, you would be making 10 times as much just by moving the money."
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You are also free to choose a fund that is based on any index that you want. For example, there are index funds set up for just about every market sector there is — energy, precious metals, banking, emerging markets — you name it. All you have to do is decide that you want to participate, then contribute money and sit back and relax. Your stock portfolio will then be on automatic pilot.
Peer-to-peer lending ($1,440 a year): I've lost interest in P2P lending since returns started coming down. You would think that returns would start going up with a rise in interest rates, but I'm not really seeing this yet. Prosper missed its window for an initial public offering in 2015-16, and LendingClub is just chugging along. I hate it when people default on their debt obligations, which is why I haven't invested large sums of money in P2P. That said, I'm still earning a respectable 7% a year in P2P, which is much better than the stock market is doing so far in 2018!
Scholarships, fellowships, and grants are sourced according to the residence of the payer. Those made by entities created or domiciled in the United States are generally treated as income from sources within the United States. However, refer to Activities Outside the United States, below. Those made by entities created or domiciled in a foreign country are treated as income from foreign sources.