Well, my first book project didn’t generate the interest I would have liked to, but another set of products suredid. In 2013, I launched a course on Udemy, which grew so fast, it became my biggest income earner of all time. That course resulted in a series of books (audio, digital, and print), a not-so-passive podcast, and even lead to my now full-time gig: SuperLearner Academy. Though I run the company full time, it is, for all intents and purposes, an automated business.
There was a time when CDs would produce a respectable 4%+ yield. Nowadays, you’ll be lucky to find a 5-7 year CD that provides anything above 2.5% The great thing about CDs is that there are no income or net worth minimums to invest, unlike many alternative investments, which require investors to be accredited. Anybody can go to their local bank and open up a CD of their desired duration. Furthermore, a CD is FDIC insured for up to $250,000 per individual, and $500,000 per joint account.

Returns on real estate investing vary and you don’t want to get into the business based on an estimated return but on your own calculation of what is possible for your local market and for specific properties. I have seen pretty common averages between 8% and 12% a year for single-family residential rentals with cash flow accounting for between 0% and 6% of the return.
Like many, I was first really turned on to the idea of passive income by Tim Ferriss. In The Four Hour Work Week, he describes the system he developed with BrainQuicken, where the marketing, shipping, reordering, banking, and even customer service of the company was on complete auto-pilot. I found this idea intoxicating. The idea that Tim could travel the world learning to tango and staying on private islands while money just accumulated in his bank account seemed like some strange fiction — surely, this isn’t how people actually live, is it?
When a taxpayer records a loss on a passive activity, only passive activity profits can have their deductions offset instead of the income as a whole. It would be considered prudent for a person to ensure all the passive activities were classified that way so they can make the most of the tax deduction. These deductions are allocated for the next tax year and are applied in a reasonable manner that takes into account the next year's earnings or losses.