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.
One of the things I'm surprised your article doesn't mention is the tax advantages of this type of investment. The depreciation and rehab costs (purchasing distressed properties) can be huge deductions to ones income taxes, which none of the others have. Then, along with the appreciation of real estate, this passive income investment outperforms the notion of maxing out my 401k as well.
Mike, I don’t consider the income from FS to be passive, as I’m spending time commenting to you right now. But since 75% of my traffic comes from search, the most traffic I would probably lose is 25% for probably a year. And then my search word rankings would probably slowly fade given frequency of posting new content is one of the search algo variables.
Starting in 2012,[clarification needed] India entered a period of reduced growth, which slowed to 5.6%. Other economic problems also became apparent: a plunging Indian rupee, a persistent high current account deficit and slow industrial growth. Hit by the US Federal Reserve's decision to taper quantitative easing, foreign investors began rapidly pulling money out of India – though this reversed with the stock market approaching its all-time high and the current account deficit narrowing substantially.[citation needed]
The appeal of these passive income sources is that you can diversify across many small investments, rather than in a handful of large ones. When you invest directly in real estate, you have to commit a lot of capital to individual projects. When you invest in these crowdfunded investments, you can spread your money across many uncorrelated real estate ventures so individual investments don't cause significant issues.
I have only dabbled in drop-shipping before when I had an eCommerce platform 6 years ago or so. I think it is something that you could do on the side, but you would want to do in depth research on the industry you want to get into before setting up shop. It may be a little less passive up front, but over time you could take your hands off the wheel.
How To Engineer Your Layoff – In 2012, it took me four months of absolute focus and two years of data to publish my first e-book about helping people negotiate a severance. The book went through over 30 revisions by four people. Then I updated the book for 2018 with 50 more pages (150 pages total) using more successful case studies and highlighting more strategies for those who want to break free with money in their pocket.

AbigailP That’s a really valid point, and I totally understand that piling more work on top of your day job isn’t for everyone. Before I started freelancing, I relied only on my day job because I was too drained to focus on other things by the time I got home. I think I’m used to it now, but it’s not easy, especially with chronic fatigue. Having a network to fall back on, or having a Plan B, is still very valuable.
Portfolio income can come from multiple sources – interest/bond coupons, stock dividends, financial strategies including derivatives and capital growth.  Each offers some cash flow and some also offer potential capital gain with some risk from liquidity and volatile prices.  In this low-yield environment, many investors rely too heavily on cash flows and to pursue this are venturing further into riskier areas than they’d normally consider.