Affiliate marketing. If you have a blog or website, you can earn a commission when visitors click on a link, or purchase something you advertise or recommend on your website, either on Amazon or another participating vendor. The cost to maintain your blog should be about $10 for the domain name, plus about $100 annually for hosting, says Michael Alexis, growth marketer and consultant in New York.

Let’s continue the vintage BMW idea. Old cars obviously require quite a lot of maintenance. Many people will buy a “fixer upper” with the intention of spending their spare time repairing and restoring it. There’s a very obvious market here: a guide to restoring different BMW models. Depending on your knowledge, you could produce detailed guides for the three or four most popular models and sell them. Not everyone restoring a car will buy them, but some probably will.
I will share what we did, because it’s an incredible success story. We used an existing tax loophole where if you sell your primary residence (after having lived there at least two years) you get to keep your profit tax-free. So, we stair-stepped. We bought house after house, at least two years apart, used the profit money to pay down on the next house (so on and so forth, yadda yadda) building up equity as we went along… and now, we own a $600,000 house debt-free. And now we are using our paid-off home as leverage to borrow money to buy commercial buildings to rent out. I like commercial because it’s a BUSINESS transaction… kids, pets, other wear and tear that you see with residential rentals is nonexistent. People take care of their business space much better than residential. You have to be in a good area for renting out commercial – a thriving business community – to make this work. But that’s how we “made it”, and though it took 15 years, we will have residual income to take care of us when we’re old enough to retire. People made fun of us for moving so much, but who’s laughing now? 😉 Oh, and our child only had to change schools once (and we wanted to anyway) because we stayed in the same general area as we moved around. We were careful not to disrupt his life too much.
A freelancing service is something that can, with the right strategy and action, turn into something more productized and passive. Brian Casel, featured guest on SPI Podcast Session #158, talks about how he was able to turn his stress-inducing one-on-one design service business into something that was actually more productized, passive, and profitable. I highly recommend you listen to that episode if you have a service-based business and you feel stuck.
There is a big misconception about rentals & people thinking that it’s passive.. rental income is far from passive. Many people flock to buy rentals as a way to “retire rich” but realize shortly thereafter that it really isn’t that easy or true.. Ask me how i know. I have bought a lot of houses from tired and burnout landlords. Luckily, there are better options out there. 

I’m somewhat embarassingly reminded of Harry Potter and the concept of “Horcruxes” here, in that the goal is to find a piece of your value, and impart it into an inanimate object or product, Voldemort Style (did I really just make a Harry Potter reference?) Anyways, whatever. If you want passive income, you have to think about the value you rent out or own. Or, you need to buy something valuable that other people would like to use (I love the idea of a 3D Printer). Then put it into something that can be sold or rented more passively. Maybe you have a car that sits in the driveway, or a vacation home that is empty half the time. Maybe you just have some funny jokes you could put into a YouTube video and run ads on. At some point, you have to “transfer” the value into something that can work for you — that something is an asset.
You know the fantasy: write some ebook (or better yet, hire freelancers in Mumbai to research and write it for you at $.20/word!) on some niche topic, set up AdWords and Facebook campaigns targeted to the right keywords (you can hire those Mumbai guys to do your keyword research too), put up a cheap landing page (with copy written by... guess who!), press "Go!" on the PPC campaign, and voilà. . . just wait for the money to roll in while you sleep!
A Risk Score of 10 means no risk. A Return Score of 1 means the returns are horrible compared to the risk-free rate. A Feasibility score of 10 means everybody can do it. A Liquidity Score of 1 means it’s very difficult to withdraw your money without a massive penalty. An Activity Score of 10 means you can kick back and do nothing to earn income. To make the ranking as realistic as possible, every score is relative to each other. Furthermore, the return criteria is based off trying to generate $10,000 a year in passive income.
2. Focus on income-producing assets. Internet growth stocks may be sexy, but they provide no income. To build a large enough passive-income stream to survive, you must invest in dividend-generating stocks, certificates of deposit, municipal bonds, government Treasury bonds, corporate bonds, and real estate. You're free to invest in non-income-producing assets for capital appreciation too. You just want to earn reliable income when the day comes to leave your job.
Yes, good point about not blatantly copying other people’s hard work. I should have said in my original post that I would NEVER do that. I have eight years’ of University education behind me which resulted in three degrees, including a Masters. If I learned one thing at college, it is that plagiarism is, as you say, SO not cool. Not the done thing. I plan to give full attribution to the originating author and paste a link to their website on my website so my subscribers can follow up the data with the source if they choose to.
There is a big misconception about rentals & people thinking that it’s passive.. rental income is far from passive. Many people flock to buy rentals as a way to “retire rich” but realize shortly thereafter that it really isn’t that easy or true.. Ask me how i know. I have bought a lot of houses from tired and burnout landlords. Luckily, there are better options out there.
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.

You may not have all the expenses listed below, for example if the tenant pays utilities or if you manage the property yourself. This is just a list of common expenses. It is extremely important that you build out an estimate on your own before you purchase a property. Most of the information can be gotten by calling around or researching expenses in the area.

But, you don't need to go further than that. You can simply write it and publish it and collect the income. That's all. Send out a couple emails to your list (if you have one) or post it on social media, and there you have it. Passive income. Now, the amount of income you receive depends on the quality of the book you've written. How well did you craft the message? How targeted was the information to your audience? It counts.

We pitched to an angel investor group. They were very excited about the idea but wanted to know who amongst us (doctor, accountant, salesman) was doing the coding. When they heard we were outsourcing it, the wind went out of their sails immediately. They did want to meet with us again once we brought a coder on board but that person proved elusive to find. Coders in our area are looking for the steady paycheck, not willing to gamble on a startup.
Investing in real estate: Investing in real estate offers more passive income cash potential - but more risk - than investing in stocks or bonds. You'll need substantial amounts of cash to invest in buying a home -- it usually takes 20% down to land a good home mortgage loan. But history shows that home prices usually rise over time, so buying home a for $200,000 and selling it for $250,000 over a five-year time period, for example, is a reasonable expectation when investing in real estate.