There are many medical research firms that perform testing on human volunteers. The tests can run from a few hours to a month or more and they all pay relatively well. Long duration tests sometimes require you to stay on the firms’ property in order to properly evaluate you, but you can receive several thousand dollars for your time. These tests almost always require you to take an experimental drug that has been proven safe in animals, but human tests are required before it can be brought to market.
In 2017, there were almost 90 million pet dogs in the US. Which has opened up a huge opportunity to make money online as a dog watcher or sitter. Specialized sites like Rover or Care.com connect pet owners with pet walkers, sitters, and boarding houses to help look after their best friends when they’re at work or on a trip. If you’re an animal lover, you can make extra money and get to spend some quality time with a furry friend.

Land next to your home can be used for a variety of purposes depending on how much you have available. If you have half of a building lot that connects to your home, you can rent the space out to someone who wants to store their RV or trailer there instead of paying a lot for a storage unit. Pieces of land that are several acres in size may be able to be used for light agricultural purposes, giving you several hundreds of dollars a year, if not more.
Schemes of this nature will also be advertised through serial promoters. Serial promoters are individuals who are not directly associated with a given scheme, but will promote from one to the next almost every day. In return, the owner of the scheme may do the same for them, or if the get-rich-scheme is a Ponzi scheme, the serial promoters will be invited to join early in order for them to make money from new recruits.
Because experimenting with print on demand requires so little investment and involves almost no risk, nearly anyone can do it. As more people catch on, it’s increasingly difficult to be successful. You can see this firsthand at Merch Momentum and numerous other passive income forums, which are being flooded with anxious posts from sellers wondering why they’re not getting sales.
If you’ve got experience and expertise in a specific area of business, there are hundreds if not thousands of business owners who would love to jump on a phone call and pick your brain. This can be an easy way to make extra money online and to hone your skills to use in your consulting or freelance business. Sites like Clarity.fm let you create a profile where entrepreneurs and business owners can pre-pay to book a phone call with you for a set amount of time. Whether you’re an expert in raising money for startups, building apps, or running a restaurant, you can make extra money selling a few minutes of your time to people in need.
WordPress is one of the most widely used blogging solutions in the world. You can set up your own blog directly on their web pages, or you can buy space on their own web sites so that you have complete control over your own blog. Blogging has been a huge trend all over the world, not just because you get pushed forward their own opinions, but also because it is possible to earn much money from blogging, while doing something that you have interest.
Teaching and tutoring English as a second language is a great way to make money online, not to mention open some doors for you to travel the world if you'd like. While full ESL (English as a Second Language) accreditation is recommended, as long as you’re a native speaker and have the ability to teach, there are people in countries such as Hong Kong or the UAE who are willing to pay upwards of $25/hr for you to tutor them English via Skype. Check out Indeed, Learn4Good and Remote.co for remote english tutoring jobs or sign up on a specialized site like VerbalPlanet or Chegg Tutors.
One of the cool things about Google AdSense is that it's so easy to get set up. If you have a blog or website, you can sign up for a free Google AdSense Account. From there, Google will give you a unique code that you will paste onto your website. Google takes it from there, tracking your page views, traffic, and earnings on your behalf. There is no upkeep or maintenance to get this thing going, which makes it a no-brainer if you have a website already.
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