If you have an extra room in your house, consider listing it on Airbnb. Airbnb is a new way to travel for many people around the world. Instead of booking through expensive hotels, why not stay at someone's house? As a guest, you can choose high end to low end, choose to stay with other people or opt for privacy. As a host, it's a great way to make side money, utilize unused space, and meet new people! How much you can earn depends on your area so I recommend finding out by becoming an Airbnb host yourself!
Similar to writing reviews, you can become a freelance writer and make extra money writing articles and website copy. While you don't have to be a professional journalist to write for a website, it helps if you've blogged or had your own website where you blog regularly. Even better is showing that you have some experience in the niche in which you're trying to find a job.

I agree mostly with the real estate advice. I’m looking for ways to take advantage of the condo I own to get up the rent from ~$0.90/ft to the $1.2-1.5/ft that seems more like the range in the same area. I’d have to put in a bit of capital (probably 10k on the low end for just the basics up to 40k if I wanted to remodel the kitchen and 2 bathrooms up to par with the area), so the return is likely there if those upgrades warrant $1.30/ft (given the unit is larger than most 2br/2ba in the area).
With Shopkick, there’s no purchase necessary to earn cash back. In order to make money with Shopkick, all you have to do is download the app, enable your location services, and start earning kicks. You’ll earn points just by walking into a store, and even more points for scanning items or making a purchase. Payout comes in the form of gift cards to your favorite stores, including Walmart, Target, Sephora, and Starbucks to name a few.
For example, donate to the American Red Cross, Sierra Club or Women for Women International, and earn 10% to 30% of that tax-exempt donation back in the form of an Amazon gift card. You can then donate that cash back to other charities, purchase items to donate to your local homeless or animal shelters, or simply use it to help feed your own family that month.
You can create your blog using a free platform from WordPress.org, but you’ll need to pay a small amount – as little as $4 per month – to have your blog hosted. Try GoDaddy.com, which can provide a domain name for your site, email addresses, database storage and other Web hosting services. To make money, you can use the free Google AdSense service to display advertisements on your site. The amount you’re paid varies by ad and usually depends on how many people see it. There's also what's called affiliate marketing, in which you earn a commission (usually less than 10%) whenever someone clicks on an ad on your site and purchases a product. The Amazon Associates affiliate program allows you to advertise the retailer’s products on your site, or try affiliate networks such as CJ Affiliate or ShareASale that work with thousands of companies. Depending on how much time you put into your blog and how many people visit it, you could be making a few hundred dollars each month within a year.
Investing in a business: Another good way to generate passive income is to invest in a business --even a small one -- in return for a percentage of the profits - just like Shark Tank, only smaller. Lending $10,000 to a local business that, for example, is working on a mobile app for Apple phones could lead to a passive income-generated share of the profits when that mobile app starts selling like hot cakes.
Many Etsy sellers list their items and rarely get any sales.  If that happens, it’s probably because you haven’t done a very good job getting the word out.  One of the easiest ways to do that is to simply make a few free samples of your items and mail them to bloggers who write about the type of thing you make.  They can keep the item for free if they’ll write about it in a blog post.  If you get a few blogs to mention you who have traffic, you could make tons of sales!
Secondly – and this is just quibbling – I’d change that risk score. The risk of private equity is incredibly high and should be considerably riskier than bonds! You are providing a typically very large amount of capital to one business that you agree to have no control over, and the success or failure of that business over a locked, predefined term determines your return. And in the few deals I’ve negotiated for clients, my experience has been that there are often management fees, performance fees, etc. that may cut into your potential gains, anyway. You’re putting a lot of eggs in one basket, and promising an omelet or two to the management no matter what. You really need to be confident that you found the next Uber before you take this giant risk!
Do you enjoy fast food or going into retail shops? Many companies hire mystery shoppers to test the customer service of their stores. A common one is Subway, which hires mystery shoppers to ensure that "Sandwich Artists" are following all the franchise guidelines. If you have time and can travel to different places, this could be a good side hustle.
I watched an episode of Shark Tank once where I was introduced to Major Robert Dyer. Major Dyer was pitching a new energy drink called The Ruck Pack Energy Drink. It’s not like the world needs another energy drink, but he was able to convince both Kevin O’Leary and Robert Herjevic, two of the investors on the show, to give him $150k in exchange for 20 percent of the company.
For my family. I live in New York City, but my grandchildren live in Rochester. Swagbucks helps pay for me to visit them every 3 weeks. I 'm also able to buy them gifts using Amazon gift cards, and help out with diapers and personal care items using CVS gift cards. I even use Target gift cards to help out with grocery shopping. Swagbucks has been a blessing and I can't live without it!
If you're looking for more traditional part-time jobs, Pollak notes that flexible job postings are on the rise for positions such as home health aides, nurses, customer service representatives and administrative workers. Seasonal work, such as part-time work tied to the local tourism industry, construction season or holiday shopping season, may provide opportunities for part-time work to earn extra cash.
Peer-to-Peer Lending: Earn up to 10% in returns by lending individuals, organizations and small companies who don't qualify for traditional financing through peer-to-peer lending platforms like Lending Club. You can lend $100, $1,000, or more to borrowers who meet lending platform financial standards. Like a bank, you'll earn interest on the loan - often at higher returns than banks usually get.

For those with a large Twitter following, you can make money from your Tweets alone with Sponsored Tweets. You could be paid for sharing a business’s information, recommending restaurants or hotels, or tweeting pictures of you using or wearing products. As with all sponsored posts on social media, businesses will only be prepared to pay you to Tweet if you have a large following that you can influence. So work hard on building up a loyal fan base.
If I have a blog that is getting 100,000 page views a month that means that I’m probably getting at least 50,000 people to the site (most blogs will do between 1.2 to 1.4 pages per session). That means I have to try and get some small percentage of those people to buy something from me if I really want to do well. If I can’t get them to buy something then (in some cases) I have ads running on the site that will make me money anyways.
Really good article with some great tips. Affiliate marketing has the potential to earn lots of money and I'm hoping I can make it happen. I have tried the matched betting and it DEFINITELY works. The one thing I would say is that you need to check that any bets have been accepted by the bookmaker. I have had on occasion bets which look like they have been accepted but don't register in my account. Always go into your account and check outstanding bets or your bet history.
In Eric Reis’s The Lean Startup, a fantastic book about how today’s entrepreneurs and startup companies are approaching the way they create and innovate, Eric talks about how vital it is to use validated learning and scientific experimentation to be able to steer a company in the right direction. In other words, to use customer feedback and quantified data analysis (of real, non-vanity metrics) from a minimal viable product to make decisions and pivot a business one way or another.
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. 
×