25. Products – You can create your own product, such as an ebook or computer software. You would then use your blog as a promotion tool to get people to buy your product. As long as you create a legitimate product with a whole lot of value, you should be able to get some buyers, but like everything else with a blog, you’ll need the traffic to get the sells.
This can include advertising, but many businesses also need help just filling up their social media profiles with relevant (and consistent) content. If you enjoy learning about social media and want to take things a step further and make extra money, social media management is a great option. If you’re good at it, it can also open up a lot of doors for you down the road. This is a great article from Small Biz Trends on How to Start Your Own Social Media Business.

Every year, hundreds of millions of documents are notarized in the United States: wills, mortgages, citizenship forms, handgun applications. While for decades, this has all been done in person, there is a budding crop of sites that allow notaries to take their services online. If you’re already a notary, you can sell your services online. Or, if you want to get started, check out the National Notary’s checklist for becoming a certified notary.
Now, this isn't about some get-rich-quick method here. If you want to get rich quick, forget about trying to do it on the internet. Sure, Facebook ads are all the craze, but without a serious understanding of the mechanics behind sales funnels and conversion optimizations, which only comes after years and years of in-the-trenches work in the internet marketing field, you're largely wasting your time trying to "get rich quick."

Believe it or not, there's an actual business, Profile Helper (profilehelper.com), that interviews clueless daters and charges them $50--$100 to revamp their dating profiles. Clever up your Facebook page to advertise your profile prowess; post info about your service on OKCupid (okcupid.com) and Craigslist. Charge $30 a pop and tell your successful clients to pass the word along. For more money, offer to snap flattering photos.
Most of us are guilty of hanging onto things that we never use, myself included. Take a day and go through all your old stuff and get rid of some of it! One tool that is really helpful for this is Decluttr. You can enter your items barcodes into their valuation engine and they’ll give you an instant offer. Then you simply pack all your items into a box and ship them off for free.
Here on Making Sense of Cents, I discuss how to make extra income, side hustles, side income, and how to make money online a decent amount. I believe that earning extra income can completely change your life in a positive way. A person can stop living paycheck to paycheck, they can pay off their debt, and more all by earning extra money and learning how to make extra money.
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." 
A large subset of our society is earning a full-time income by selling items on Craigslist and Ebay. You can do this by selling your own items, or you can help sell items for other people and take a small commission. Selling on Ebay offers more friction than Craigslist and you'll need to establish solid reviews before you can begin to move high-ticket items.
The MTA's Music Under New York program (341 Madison Ave at 45th St; 212-878-4678, mta.info/mta/aft/muny/) schedules musicians to play each month in city subway stations. Too underground (har) for auditions? You can still legally perform your acoustic rendition of "Circus" in the subway. As long as you're not using an amplification device, selling CDs or positioned near a booth, in a car, or blocking the flow of traffic, you're totally within your rights. Check in with City Lore's Street Performers Advocacy Project (212-529-1955, citylore.org) to learn the rules.
While you play, the app works in the background and transfers small sums from your checking account into a high-yield Blast savings account based on “triggers” you set — things like the number of opponents you defeat or enemy bases you destroy. You can earn extra cash by completing “missions” that allow you to test new games or take familiar games to the next level.

This isn’t to scare you off. I simply want you to know that this guide is going to focus solely on ways to make real, sustainable extra income online. Not just a few bucks. I want to share all the mistakes I've made that got me to where I am now so that you don’t have to go through them, and can build a successful online source of income for yourself.
I understand the need to build a profile, but again, after several minutes of answering repetitive questions, I am either told I don’t qualify, or I’m sent an email which contains a broken link, or…you get the idea.  I would gladly spend 30 – 45 minutes answering a survey, submit, and earn the amount of $ it said it would pay.  But, these last four days have been a royal waste of time. 
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.

Make the most of your spare space by listing it for short term rentals with Airbnb. If you know how to be an Airbnb host that wows their guests, you have an amazing opportunity to make money fast. By creating a wonderful experience for your guests, you’re setting yourself up for great reviews and lots of repeat guests. Check out our complete guide on getting started as an Airbnb host.
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