I do agree that a few of these ideas are not bad, but for me the problem with some of these platforms has been that I’m not from the USA. So, I can’t operate there. It’s a really interesting possibility to get some extra bucks from doing what you would do either way, like shopping. One of the best projects so far that I have seen is FluzFluz. It’s simple and really easy to use for everyone who uses Uber, Amazo, or other apps. The best part of all is that you can get some passive income – not just from your own purchases, but from other people’s as well. I hope one day it will make it here to your list. I think it’s worth it to check out.
Writing an e-book is very popular among bloggers, as many have noted that “it's just a bunch of blog posts put together!” You will not only have to make an investment of time and energy to create the e-book, but market it correctly. However, if marketed correctly (through blogging affiliates in your niche, for example), you could have residual sales that last a very long time.
Another way to generate passive income is to invest and be a silent partner in a business. This is very risky, but with risk comes the potential for high returns. For example, several years ago both Lyft and Uber were looking for private investors to invest in their companies. Today, they are worth billions - but you as an investor would only reap that benefit if they go public via an IPO, or get acquired. So, it's risky.
If you're looking to get started in real estate, look at a crowd funding solution like RealtyMogul. It works similar to LendingClub - you commit as little as $5,000 towards a property. When the property is fully funded, you become an owner, and will receive your share of the earnings and appreciation in the property. Check out RealtyMogul to learn more.