Great article, I have tried a few over the years. I had a side business cleaning offices for years. It did great, but I hated never being able to take more than 3-4 days vacation, so I eventually gave up. I tried MTurk, but if you multiplied my earnings on an hourly basis, it was a little over $6/hr. My blog is much worse, probably less than $0.25/hr.
18. CraigsList – Some things don’t ship very well. Other things may make you feel uncomfortable to sell to someone across the country. Anytime you’re selling a large item or something you just don’t want to ship, Craigslist is a great place to go. It’s simple to list your item (again, take good pictures!). If you don’t like the idea of putting your phone number out there, the interested individual can send you a message to your inbox without even getting your email address.
Amazon will have you work on micro-projects that require some sort of human interaction. Tasks can include translating a paragraph into English (or another language), rating the search results for certain keywords, or reworking an article. The tasks are simple, and you will be paid a small amount to complete each. But if you do enough tasks quickly, you can make a respectable amount of money.
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. 
Look through your attic and closets. It's time for a purge. Selling on eBay is an easy way for you to clear up the clutter in your home while making money. But you can also look at eBay as an income opportunity through its many business models. Besides selling your own stuff, you can browse garage sales to find inventory or even open your own eBay consignment business to sell other people's belongings while earning a cut.
More than ever, writers are needed to formulate news articles, create content, and come up with the creative ideas that fill the pages of nearly every site on the Internet. And although many bigger sites have in-house writers, a growing number of sites outsource their content and hire freelance writers and content creators. Writing experience is very helpful, but what you really need to get started are drive, ambition, and the ability to find a unique angle on events that happen every day.
In this day and age, managing one’s personal finances in a secure manner that allows the user to have a real-time visual representation of their money is easier than ever before. With the numerous applications that are out there — both free and subscription-based — there’s no reason that every person can’t take control of their money and ensure they’re making smart money moves.
What does that mean for you? It means Nielsen will pay you $50 a year to keep their app on your favorite internet browsing device. The app itself collects statistics on your internet usage anonymously, so you never have to worry about any data being linked to you. And the best part is, the app takes up barely any space and doesn’t slow down your phone or tablet at all!