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. 
Tutor students. If you have an academic specialty and can squeeze in a couple of hours during the week while Junior is taking a nap or Janie is at gymnastics, share your knowledge with struggling students. Find students looking to improve their grades on your own through your kids' schools – check a site such as Craigslist.org to gauge hourly rates in your area – or sign on with an online tutoring company, such as Tutor.com. You must be available to tutor at least five hours a week and have a college degree to tutor certain subjects for Tutor.com. Tutoring is done virtually from home via a computer, not in person. Tutor.com tutors are paid an hourly rate based on the subject.
Writing an e-book is very popular among bloggers, as many have noted that “it's just a bunch of blog posts put together!” You will not only have to make an investment of time and energy to create the e-book, but market it correctly. However, if marketed correctly (through blogging affiliates in your niche, for example), you could have residual sales that last a very long time.
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.
Start an affiliate marketing website: This passive income model works for individuals who already own a bog or website. Here, your business goal is to contact companies and offer to tout their products and services, usually for a fee or a commission, based on the number of page views you get. Studies show that more people spend time online and less watching TV or reading the newspaper. Take advantage of that leverage and earn income from the tens of thousands of companies who want to reach an audience - maybe your audience. Either reach out to companies directly or go through a site like ClickBank, which offers affiliate marketing opportunities.
Work in grocery delivery. Instacart is a company that will pay you to pick up grocery store orders in your spare time. The entire purchase and order takes place through the Instacart app, making it easy for you to pick up the groceries your customers wants and get paid. Like other food delivery jobs on this list, Instacart lets you earn a per-trip rate plus tips. Shipt is another service that will pay you to shop for groceries and deliver them to consumers in your area, so make sure to see if they’re available where you live.
Many banks will give you a cash bonus just for opening an account with them. Talk about easy money! Banks are in tough competition for your business and will pay $100, $200 or even $300 just for becoming a customer. For example, right now Chase Bank is offering $200 cash for opening a checking account, and then another $150 cash for opening a savings account. Certain qualifications must be met but if you do qualify that's one easy way to earn $350 cash! Collect $350 cash with Chase Bank
P2P lending started in San Francisco with Lending Club in mid-2000. The idea of peer-to-peer lending is to disintermediate banks and help denied borrowers get loans at potentially lower rates compared to the rates of larger financial institutions. What was once a very nascent industry has now grown into a multi-billion dollar business with full regulation.
A fitness site can have numerous revenue streams. Create healthy eating plans and recipes and lock them away as premium content. Promote and sell a fitness training course, eBook, or a series of videos. Or advertise your own personal fitness services on your site. Topfithub is a good example of a fitness site with decent video content alongside product reviews.
Working as a freelancer is a great way to make money online from the comfort of your own home. The beauty of freelancing is that you can tailor it to suit your needs. You can freelance for a couple of hours a week in the evenings to help save up for a holiday or some much-needed home improvements. Or carve out a full-time job for yourself, giving you a more satisfying work-life balance and enabling you to do the simpler things in life like taking the kids to school. With so many jobs available online, freelancing is becoming more and more popular.
This is similar in concept to micro-tasks, except that it is oriented toward specific services, such as cleaning services, pest inspection, handyman services, house cleaning, lawn & garden services or any of the skilled trades. It might actually be more accurate to say that it is a platform where skilled service providers can offer their services to site visitors, similar to Angie’s List.
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!