I have not. While I am intrigued with the possibility of making online income, it seems to be less passive then how I want to spend my time. Regarding your blog / site, you have done quite well for yourself. However, you have to keep pumping out content or your site would eventually go out of business. That sounds like more of a commitment then I would want. Regarding your book sales, it is probably relatively passive now, but certainly was not when you were writing the book. Now if you love it, great. Just not for me.
I love real estate investing, but it requires a lot of upfront capital plus you are going to have to learn to love your tenants (see point 6 below)! Crowdfunded real estate investing gives you a way to still invest in the real estate market, without having to necessarily put in a lot of money upfront. It’s definitely a much more passive investment than owning a flat or a house!
In this economy, it seems like more and more of us are looking for a way to earn passive income. Whether we need to pay off credit card debt or just need some extra cash, passive income could come in handy. But what is passive income exactly? Depending on who you ask, it may not be as “passive” as you think. Let’s take a look at what it is and the top ways to make it.
The rules in the next two paragraphs apply to any financing incurred after August 3, 1998. You also can choose to apply these rules to financing you obtained before August 4, 1998. If you do that, you must reduce the amounts at risk as a result of applying these rules to years ending before August 4, 1998, to the extent they increase the losses allowed for those years.
“I don’t believe the overnight success exists. There’s a lot of hard work and time involved beforehand,” say Flynn. Angry Birds may have seemed like an overnight success but it was the 52nd game that Rovio created. Flynn says it took him a year or year and a half to build audiences for his most successful sites. (Read these time management expert's tips on the work habits of successful people.)
Where a CCPC has a RDTOH balance, since it has earned passive income, yet has also earned income that is active not subject to the small business deduction, there is an opportunity to benefit from additional deferral. The income that was taxed at the active tax rate of 26.7% would be eligible to be paid to the shareholder as an eligible dividend (“Eligible Dividend”). When an Eligible Dividend is paid that generates a tax refund from the RDTOH pool of the company, there is a 4% tax savings than if the dividend was not an Eligible Dividend. Profits from passive income do not need to be paid as a dividend that is not an Eligible Dividend to the shareholder for the corporation to recover its RDTOH pool. There is currently no ordering rule or tracking system forcing corporations to declare and pay a dividend that is not an Eligible Dividend taxed at a higher rate in the individual’s hands in order for it to recover its RDTOH.
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.
Self-publishing belongs firmly at the top of any passive income ideas list. Amazon, with Kindle Direct Publishing (electronic version) and CreateSpace (print on demand version) dominates the self-publishing world. It’s both good and bad. Good in that they’re quite generous with their commission rates (usually 70%). Bad in that they can change their policies at any time to be less favourable for authors and there is nowhere else for us to go. That’s not entirely true. There are a few other options, but none of them are as good as Amazon!

Active Income Investments: Flipping and wholesaling. You have to do work in order to see money from these. You have to be hands-on. Note: I do still stand by my argument that wholesaling is not actually an investment at all, but for the sake of so many people thinking it is, I am including it. Another note: It is possible, if you are really slick and good, that you could be decently hands-off for a flip. But that is long down the road of being an advanced flipper so for now, I’m leaving it here.
I read about early withdrawal penalties on IRAs/401Ks very often. Almost always with a statement of “locked up” or “can’t touch” until 59.5. I’m sure you and well informed readers as well know about SEPPs in regard to IRAs/401Ks. For those that don’t SEPPs aren’t perfect but they are a way to tap retirement funds penalty free and I will be using in the future as I have over half of my equity investments within retirement accounts. South of a mil, North of a half. Let me add that I think your blog is outstanding.
I own several rental properties in the mid west and I live in CA. I have never even seen them in person. With good property management in place (not easy to find but possible) it is definitely possible to own cash flowing properties across the country. Not for everyone and not without it’s drawbacks, but it seems to be working for me so far. I’m happy to answer any questions about my experience with this type of investing.
You must file a written statement with your original income tax return for the first tax year in which two or more activities are originally grouped into a single activity. The statement must provide the names, addresses, and employer identification numbers (EINs), if applicable, for the activities being grouped as a single activity. In addition, the statement must contain a declaration that the grouped activities make up an appropriate economic unit for the measurement of gain or loss under the passive activity rules.

This is certainly not in my wheelhouse, but time and again people have been able to make a lot of money from creating and selling an app.  You can offer the app for free to users, and if enough people use it you can then charge for businesses to advertise (just like #5) with you.  You can also offer a version of the app that has no advertisements, but the user must pay a nominal fee to have this version.  Either way once you have created the app and it is in the marketplace, it has a ton of potential to generate passive income.  Depending on the app, you could also be bought out by a larger company and given a lump sum to walk away.  This happened to Garret & Jessica Gee.  Garret developed an app that was eventually sold to Snapchat for $54 Million!
Real estate investments generally are considered passive income – unlike income from a job, which is considered active – because revenue is generated from the money you invested rather than from the work that you do. You have to pay taxes on your income regardless of whether it's active or passive. Money earned from real estate investing is reported on the Schedule E form and gets carried forward to line 17 of your 1040 tax return. It's then included with your other income and is subject to regular taxes.
One of the most appealing options, particularly for millennials, would be #12 on your list (create a Blog/Youtube channel). The videos can be about anything that interests you, from your daily makeup routine (with affiliate links to the products you use), recipes (what you eat each day) or as you mention, instructional videos (again with affiliate links to the products you use). Once you gain a large following and viewership, you can earn via Adsense on YouTube.