If you’ve got a way with words and expertise in a niche, there are plenty of sites that will pay for articles and content you write. Think of the sites you read regularly. What can you contribute to them that would be interesting? Research your niche and then look for ways to pitch articles. Many sites will simply have a submission or contact link in the footer. To get started, check out my full guide to becoming a freelance writer on the side and then submit your articles to places like Listverse, TopTenz, A List Apart, International Living, FundsforWriters, and Textbroker.
According to CheatSheet.com, AbeBooks will “buy back” old textbooks or other lightly used reading copies, and they pay by check. Similarly, Powell’s buys used copies but has a very strict policy about the condition of your books. Expect to receive a check - but if you plan on buying additional books, you’ll get more bang for your buck by taking store credit.
You can set up your own website and sell your ebook directly online. You might make a PDF available to your readers for example. A simple shopping cart or PayPal link and you’re all set. A reader visits your site, they order, and they get a download link and get your book. It’s pretty much all automated, and you simply keep an eye on things to make sure the site is running smoothly.
Another great example of this is Jeff Kavanaugh’s book, Consulting Essentials. Jeff is a partner at Infosys, a large consulting firm, and an Adjunct Professor at the University of Texas, Dallas. He wrote this book to help his students understand what consultants did and how to do it, and it’s had the unintended consequence of attracting hundreds of very qualified applicants to his firm.
Self-published authors have had big success in recent years. Take Hugh Howey, who sold a series of science fiction books through Amazon’s Kindle Direct Publishing. At one point, he was selling 20,000 — 30,000 copies a month, which generated $150,000 in income monthly. Amanda Hocking, who writes “paranormal romance” and fantasy novels, has sold well more than a million books on Amazon, generating over $2 million in sales. That's proof that you can make money self-publishing on Amazon.
The signup was pretty simple the last time we checked. Fill in the blank forms, do a quick video for Cambly’s internal use, and verify your email address. There will be some questions about any certifications or teaching experience you might have, but it’s just fact-gathering – neither one is necessary. Then they’ll review your application and get back to you with a yes or no.
Fox’s book is a little outdated now, but the alternative passive income streams he mentions includes straight up blogging (with the advertising and affiliate marketing as the natural monetization strategy), but also podcasting (don’t agree with this so much as a direct revenue stream) and vlogging (video blogging / web TV, whatever you want to call it).

If you’re serious about making money selling things online, it’s pretty much impossible to not recommend Shopify. The platform gives you everything you need to get your online store up and running in less than a day including a custom domain, beautiful templates (so you don’t need design skills), secure payment options, and they can even take care of marketing and shipping for you. Whether you’re promoting your own products, designs, or curating other products for people in your niche, Shopify is the best option for powering your online store.
We’ve spent a lot of time talking about the unethical ways to make money online, in the hopes of discouraging anyone from using any of these tactics. Doing things legally and ethically is the only way to create and maintain a successful business. Sooner or later the Blackhat and illegal techniques will catch up with you, and you could lose everything.
Prior to that group, they had an online community for teachers looking for lesson plans. That probably sounds pretty random, but it's crazy the type of communities you can build and rally people around. If it's something that you're passionate about yourself and you want to connect with others that have that same passion, then an online community is something you should definitely consider.
Several websites offer money (after a minimum level of earning) by clicking on advertisements. Hence, they are called paid-to-click (PTC) sites. One has to get registered before the project begins. Not all of these sites could be genuine, so be careful. One may also refer friends and earn money in the process. Some such sites are ClixSense.com , BuxP and NeoBux are some of such PTC sites.
Before I lay out the exact method, you may need to lay your ethics aside because this is in a bit of a grey area. When I say that this is a blackhat method, I really do mean that. If you are the kind of person who wants to be completely honest to your clients, feel free to disclose what you are doing to the Fiverr buyers who will purchase your gig. This may net you less orders overall, but at least your conscience can be clean.
This site brings together experts and the people that need their questions answered on different topics. Qualified experts on the site are matched to individuals that have questions in their area of professional expertise. To answer questions on the site, you will have to register with LivePerson so that you are provided with necessary tools to enable you assist clients as well as colleagues on the site. Every time an expert gets hired by a client through the site, they are remunerated according to the agreed rate. Payments are usually made through PayPal, making it important to have an account set up before applying for a position on the site.
PS Joel also throws up the whole coaching idea in this book, and whilst it’s not at all passive I just wanted to mention it, because this is one of the ways to create a six-figure business for yourself if you are a true expert in an arena.  ie you can use passive income info products (that generate say $30,000 a year) to pull in the customers for your 1-1 or mastermind style coaching service (that brings in say $100,000+ a year).
Holding contests online is a great way to get attention for your brand or products. Giving away free products is perfectly fine. But if you hold a contest involving money for a prize, you are entering into what is considered “sweepstakes” territory. There are particular regulations in various states regarding such contests, and you must make sure you follow these to the letter or face criminal charges. If in doubt, leave it out! 
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