Mechanical Turk is Amazon's take on micro-jobs. These are small miniscule-jobs that you can do for other people, which they call HITs, or Human Intelligence Tasks. These are super simple tasks that anyone can do. Some examples are listing off some URLs with certain kinds of images for one cent, or recording a few phrases with a microphone for 6 cents.
Sell stuff online. If you have high-quality items to sell, there are a slew of online marketplaces you can use. Just make sure you understand the fees associated with your sale before you take the plunge. Where neighborhood Facebook pages and Craigslist ads are free, many online marketplaces or consignment shops charge for ads or require you to fork over a percentage when you make a sale.
Make sure you have some sort of money maker on your website before you start promoting it. You could promote an affiliate product related to your site's topic, or you could use Google Adsense. Your goal is to get your site to make the most money possible, so if you have lots of ways to make money on your site, then you will most likely make lots of money.
Great list! I have another to consider that I personally have 35+ years experience providing. Clean up litter outside commercial properties on foot using inexpensive hand tools. It’s almost as easy to do as going for a walk! I started doing this as a side gig in 1981 and soon grew it into a profitable full-time business. I share my experience in my book, Cleanlots.

Rescue battered wood. Pallets and pallet stock are cheap (or free) and easy to come by. Look for untreated specimens at construction sites, community colleges, buildings under renovation, or shipping warehouses and plane them down and/or kiln-dry them in a homemade kiln-dryer to uncover their hidden beauty. You can then resell the wood as is or even turn it into beautiful furniture. (Be sure to advertise that the wood is “reclaimed,” as people are often willing to pay much more for this.)
There are numerous printing companies that will print your designs onto not just T-shirts, but also hoodies, hats, posters, cushions, bags, and phone cases, to name a few items. These businesses also offer fulfillment services. This means that you promote the merchandise on your own site and once you sell a product the printing company will not only print your design but also send the item directly to the buyer. So all you have to do is concentrate on the marketing and selling of your products, and the fulfillment company will take care of the rest.

Take surveys. You can earn $50 to $100 per month in cash and products by taking online surveys. Find survey sites by searching for “paid survey sites” online. Sign up for several survey sites to increase your chances of being selected for higher-paying surveys. Register with an email address, and check your email often so you can respond quickly to survey offers.
Etsy: While Etsy's popularity has declined recently, it's still a great resource for selling handmade items online. No need for complex ecommerce sites or merchant accounts or any sort of automation. The company takes a commission of every sale and charges a small listing fee per item. But many still use Etsy as their primary source of income. The best part is that you can also sell digital products on here such as poster designs. 
So if you want to get started, you don't need a website, and you don't need a portfolio of all your work experiences. You could pretty much get started by reaching out to ​businesses and saying, “Hey, I want to do XYZ freelance work for you.” Now, if you're wondering where to get different jobs like these, Upwork, Fiverr, and Craigslist are great places to start.

Set up an account on Rover.com. Enjoy furry company once in a while? These days, many professional pet-sitters set up an account on Rover.com. With Rover.com, you can reach people in your area who are actively looking for someone to watch their dogs, cats, hamsters, or turtles, either in their home or your own. You can set your own rules and schedule and come up with your own pricing through the Rover.com pet-sitting platform.
Petroleum remains heavily subsidized by various tax breaks—and they've made fortunes for oil tycoons for decades. Windmill farms and solar energy would not exist without heavy government subsidies. U.S. agriculture has been heavily subsidized since the 1930s, and even more so in Europe. The U.S. steel industry is, in effect, perennially subsidized by anti-dumping and other import tariffs. Real estate benefits from government largess via Fannie Mae , Freddie Mac and the Federal Housing Administration and tax breaks.
I think Drop shipping is the best way that can help you make money online. It is the only way that allows you to start an online business without investing capital in inventory, warehouse and to buy products individually from a wholesaler and ship them directly to your customer. Moreover, with my drop shipping experience, you will learn key strategies that you won’t learn anywhere else to help your online business grow and thrive.
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