If you want to clear some space out in your house and have a big stack of books you’ve been holding onto for too long, you can make money selling your books and textbooks online. Stores like Half Priced Books and others will give you cents on the dollar for each of your current books while you can check what your book is worth by simply entering the ISBN number on Book Scouter.

It doesn’t pay much, but if you’re a healthy person and want to make a bit of extra money online, the AchieveMint app will reward you for doing things like walking, tracking your food, or taking health surveys. AchieveMint works by connecting to fitness apps you might already be using like Fitbit, RunKeeper, Healthkit, and MyFitnessPal and then giving you points for certain actions. For every 10,000 points, you earn $10 with no limit on your earnings.
Profit from you photos. If you’re skilled with a camera, you can turn your photos into cash by selling them to stock image sites, such as Shutterstock.com. If the photos you submit are accepted, they can be downloaded by Shutterstock’s subscribers and you can earn anywhere from 25 cents to $120 per image download. Other sites that accept photos from contributors include iStock, Dreamstime and Sqeeqee.
ChaCha (chacha.com), the service that responds to random questions from phone calls or texts, hires guides to text back answers from home. To apply, take a quick test on the website to determine your "guide role." We got info about becoming a guide via text, of course: "I was lucky enough to make Top Guide and now make 20 a text. Thanks for asking!" As a generalist or specialist, you can expect payments between 10 and 20 per completed task.
When was the last time you went to a new restaurant without looking it up online beforehand? Or bought a product that didn’t have at least a few 5-star reviews? It seems like more and more our world is run on reviews. And you can make money online by writing them. Get started by creating accounts on sites like Vindale research, Software Judge, FameBit, CrowdTap, Influence Central, and Modern Mom. However, before you run off and start writing, be sure to check the small print on each of these sites. Writing reviews isn’t a huge source of guaranteed income and you want to make sure that it’s worth your time before you get going.
Using Fiverr is a great way to pick up work. Once you have signed up you can advertise your services. Fiver allows you to create your own gigs, whether you are offering web design, digital marketing, writing, or something else. You can choose how much you want to charge (it can be more than a fiver) and people will then contact you if they are interested in working with you. Fiverr will not only help you get experience if you are just starting off as a freelancer, but it will also help you earn some extra cash.
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.
If you’re willing to take on some risk and have the heart of a true hustler, you can make extra money online doing commission-only sales for startups and other businesses. While you won’t be getting a regular salary, with the right sales strategies and skills as an inside sales rep, you can make decent money for each sale you bring in. And because you’ll most likely be working with startups, if you can negotiate a little equity you could profit big time if you're pitching a solid product and the startup succeeds.
“The process is pretty straightforward: You fill out a questionnaire (either online or over the phone since sometimes they call you if they need to fill open slots) and if you qualify for the taste test you simply pick one of the available time slots,” Chelsea says. “You never know which fast food/restaurant you’re going to be tasting until you arrive and begin the taste test.”
Waiting tables at a restaurant means scrounging for tips. Cater-waitering for dinner parties, corporate events and weddings is essentially the same job—but with an hourly rate of $17 to $35. Send your rsum and photograph to Premier Model Bartenders (145 W 28th St; 212-499-0886, modelbartenders.com), which employs 300 part-time cater waiters in New York.
Know your local lore? Big Onion Walking Tours (212-209-3370, bigonion.com) offers jaunts through more than 30 Manhattan and Brooklyn enclaves and is looking for new guides, who get $50 and up per hour. "But we have extremely high standards—all our guides must have advanced degrees in history and be licensed [by the Department of Consumer Affairs]," says Seth Kamil, Big Onion's president. "And it takes four to eight weeks of pretty serious training to learn the Big Onion method." 
Holly told me she started writing content in 2011. At the time, she still worked a full-time job but created content online part-time to supplement her income. Over time, she was able to double and triple her rates until she could quit her full-time job to write. These days, she makes bank as a freelance writer and teaches others to do the same via her online course, Earn More Writing.

The cash back industry is ruthlessly competitive, isn’t it!? All of these apps want new users, which means you can load up on welcome bonuses. The Ibotta app is another opportunity to get a bonus: they are giving people $10 when they sign up. Unlike the other apps mentioned in this article, Ibotta specializes in getting you cash back at grocery stores.
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