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. 
As long as there is still the written word, there will always be editors. Freelance editing and proofreading not only pays a decent hourly wage, it also gives you the chance to read about potentially interesting topics too. What's more, pursuing freelance writing & editing as a business idea can afford you a lifestyle that lets you travel the world as a digital nomad. You can find lots of job postings from companies and individuals in need of writing, proofreading, and editing services on Contena, which makes this a high-demand opportunity to make money online.
It’s sometimes hard to comprehend just how much people love t-shirts. And with the right niche, marketing, and tools, you can create an online t-shirt business that makes you extra money online while you sleep. (Even Bloomberg and Forbes feature stories from entrepreneurs who've done just that.) Services like TeeSpring make it easier than ever to create a t-shirt drop-shipping business where they handle the sales, printing, and shipping, and you’re only responsible for design and marketing. Or you can even buy into well-established franchise businesses like Rhea Lana that sell fashionable, affordable kids clothing and get the backing of a proven organization to fuel your online sales. For more tips, check out this simple guide to launching and marketing an online clothing store by my friends over at Selz.
21. Facebook – Facebook swap shops are great for selling things locally. It’s like CraigsList, but a little easier. You simply search for swap shops in your area and ask to join the group. Once you’re in, take a picture of the item, write a quick description with the price and post it. It doesn’t get much easier than that. You can generally expect to get about what you would get at a yard sale, maybe a little more.
Decluttr is easy to use. Grab an unwanted item, check that Decluttr buys it (for instance: CDs are great, old clothing is not), and enter its barcode into Decluttr’s “valuation engine” or use your Decluttr smartphone app (iOS and Android) to scan your item directly. You’ll receive an instant price quote that you can accept or decline with no obligation. If you accept, just pack your items into a box large enough to fit them, slap a free Decluttr shipping label on it, and bring it to any authorized UPS location (including drop boxes, if your box contains fewer than 25 items). Decluttr issues your payment the day after your item arrives by PayPal, direct deposit, or paper check. There’s no practical limit to the number of items you can sell: each order is technically limited to 500 items, but you can create as many orders as you like in any given timeframe.
19. eBay – Of course you can’t read an article about making money online that doesn’t mention eBay. You can start an eBay store and get serious about it or you can just sell some stuff to declutter your home. Either way, I’ve made my fair share from selling on eBay and it’s still a popular way to earn money. If you decide to start an actual eBay store, you’ll want to find a drop-ship business like Doba that will store and ship items straight to your customers so you don’t have to deal with an inventory.
Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs.
Advertising. You won’t have any quests until you get the word around about your room. Start locally by putting a sign in your front yard and spreading the word through friends and family. Next, build a small website and make sure that you attract the search engine spiders by using the keywords people would likely search for when looking for a place to stay in your area. In addition, there are sites that specialize in promoting specific areas and their attractions, such as HomeExchange, BedandBreakfast.com and Airbnb – your Bed and Breakfast should be listed there.