Read product reviews before you buy. Decide whether a desktop or a laptop is best to suit your needs (Ex. You will likely need a desktop to get a customer service position. On the other end of the spectrum, proofreading can be done on a tablet if necessary.) And, while you’re budgeting for new hardware, don’t forget to factor in a good headset – many remote jobs require them. (To increase your marketability, you can also add a decent mic and an all-in-one printer. Or even a foot pedal if you’re going into transcription.)
What types of businesses work best? Find one in any of the following highly-profitable three industries: make money online, diet and fitness or relationship and dating. Any business targeted to one of these industries can reap the benefits of massive consumer spending occurring every single day. While you can certainly sell products for other companies as an affiliate, creating your own, also presents significant upside.
Or, if you’d prefer more something more editorial and less salesy, you can find that, too. Media companies (including Entrepreneur) offer digital writing and editing positions for the digital publication, which essentially can be accomplished from anywhere in the world -- as long as you have an internet connection. In fact, we have some writers at Entrepreneur who work from Paris or their home offices instead of the office in New York City.
Do you have a big ticket item or two that you only use part-time? We are living in an age of “peer sharing” which has opened a door to earning income from renting everything from RVs (Outdoorsy) to sailboats (see Sailo). This works for smaller items, too. KitSplit lets you lend out professional cameras. If you have a desirable item that costs more than the average person can afford, someone out there may be willing to pay to borrow it.
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
Another option that isn’t quite cash back but is along the same lines of “make money by saving money” — the Honey Chrome extension. Whenever you head to your cart to check out, Honey searches for online coupon codes or better deals from different retailers. That means no more wasted time Googling “[insert store name] coupon code” just to come up empty-handed. Honey does all the legwork for you!
Next, you’ll need the right tools. You can be as complicated or simple as you want depending on your comfort with audio equipment, but at the minimum you’ll want a microphone and software for recording your voice. Companies like Behringer, Blue, Focusrite, and others sell studio-quality plug-and-play podcast setups that can get you recording today.
Every year, hundreds of millions of documents are notarized in the United States: wills, mortgages, citizenship forms, handgun applications. While for decades, this has all been done in person, there is a budding crop of sites that allow notaries to take their services online. If you’re already a notary, you can sell your services online. Or, if you want to get started, check out the National Notary’s checklist for becoming a certified notary.
If you have graphic design skills then you could make money online by creating and selling your own design elements, like templates, fonts, graphics, and other assets. This is a great way to earn extra money and build up a portfolio of work, which could lead to you picking up freelance graphic design jobs. Websites like Envato Elements pay you a fee per element sold, which can become quite profitable if your work is popular.
To do that, you have to harbor a few fundamental guiding principles in your mind. Today, if you're at all serious about generating a full-time income (and more) from your online activities, then you need to focus on passive income as opposed to active income. Sure, the active income will help you survive. That's the scarcity mentality at play. But it's the passive income ideas that will help you thrive.
What a huge, great list of ideas – bookmarked this as I know I’ll be coming back to go over it again and again. Here’s another item that could have made the list. I found a financial directory that’s useful for info on making money online. It’s http://money.madbeetech.com. What I like about it is that each directory listing includes ebooks and videos that can be instantly downloaded. All sorts of stuff for people who have their own website, and people who don’t (but still want to make money online).
How much will you make? I think my best month with Google AdSense was almost $5,000 over the last ten years. That amazing month blew my mind since it was actually near the beginning of my blogging journey. When you go from making zero to $5,000 in a month, that will rock your world. For me, it also got me even more excited because I knew there were other ways to monetize.