7 Realistic Ways to Make Money Online From leveraging the app economy to blogging, the Internet offers a variety of opportunities for raking in money.

Whether you're looking to make some fast cash, or you're after long-term, more sustainable income-producing results, there are certainly ways you can make money online today. The truth is that making money online isn't as difficult as most make it out to seem. It does require some discipline.

However, if you're looking for realistic ways you can start earning money online now, then it really truly does boil down to seven paths you can take towards profit. Some will provide you with immediate results, helping you to address your basic monthly necessities such as rent, utilities and groceries, while others have the potential to transform your life by revolutionizing your finances in the long term.

Related: 8 Ways to Make Money Online Without Quitting your Day Job

No matter what method you select for generating your online income, there's one very important thing to understand. Money can be earned and spent, saved and pilfered, invested and wasted. Not time. That's why time is far more valuable than money. You can't recreate time. Once it's spent, it's gone forever.

When you lack the luxury of time, making money on or offline can seem like an impossible task. How are you supposed to do that when you're working at a life-sucking nine-to-five job? While the stability of full-time employment might allow most to sleep well at night, it doesn't empower your creative juices to search for new income-producing strategies.

No matter what method you end up using to generate an income on the web, you need to adjust your mindset to help empower rather than discourage you. The truth is, making money online can be fraught with avoidable pitfalls. Cancel the noise by keeping a few fundamental guiding principles in mind.

If you're at all serious about generating a full-time income and possibly more from your online activities, then you need to focus on passive income as opposed to active income. Sure, the active income will help you survive. That's the scarcity mentality at play. But it's the passive income ideas that will help you thrive.

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Considering that you have a finite amount of time, passive income should make up a large part of your work. If you're serious about generating any semblance of income online, then passive income should be one of your sole goals and ambitions. Why? Wouldn't you prefer to do the work one time and get paid repeatedly as opposed to relying on your time to generate that income? Invest the time at the front-end so that you can reap the benefits on the back-end. This means putting in a bit of sweat equity and not getting paid today. Rather, you'll get paid somewhere down the road. And you'll continue getting paid whether you keep building that passive income stream or you stop.

Anyone interested in making money online should be pursuing passive income, while also working on active income. There are loads of ways to generate an income passively on the internet, many of which start at the foundation of having a blog, generating substantial traffic and building an audience and a list. It's not easy, but it's worth it.

That doesn't mean you need to start a blog to make money online today. You could opt for a non-blog-starting route, but if you're looking for longevity in your income-producing abilities on the internet, then a blog should be your primary aim.

1. Leverage the app economy

If you're looking to address some immediate financial needs, then the app economy is likely right for you.

Uber or Lyft: If you're in a locale where you can find Uber or Lyft, or one of the many competitors around the world such as China's Didi, the hours are flexible and you can work as you see fit, making it perfect, even if you currently have full-time employment but are looking to make some money on the side.

Postmates: You don't even need a car in some locations to make money with this app. In some major metropolitan areas like Manhattan, a bike would suffice.

iBotta: Earn cash back rewards by purchasing featured products at major retailers. All you have to do is add rebates, go shopping, then snap a photo of your receipt to earn your cashback. Simple and effective.

Task Rabbit: Another simple and straightforward app for making a bit of side-hustle income is the Task Rabbit app. Tasks can be anything from simple repairs to more exhaustive undertakings. The app carefully vets each service provider to ensure the highest quality, and it's a great way to make some extra income on the side on your own terms.

Ebates: This app offers a simple way to make money online by buying whatever you're already buying and then getting a cash-back reward. With eBates, there is no scanning receipts. Simply click a link in the app and buy it from the store. You'll automatically be credited with your cash rewards upon purchase along with receiving an email confirmation.

Swagbucks: With Swagbucks, there are a number of ways you can make money. You can shop online, watch videos, answer surveys and surf the web. The app gives you both cashback and gift cards as a reward for your efforts.

Inbox Dollars: Another app you can use to make money online is Inbox Dollars, which pays you for watching television, taking surveys and shopping. There are cash offers here and it's relatively similar to some of the other apps in this arena.

Related: What You'll Really Earn on Uber, Airbnb and TaskRabbit Every Month

2. Use existing websites

You could also opt to use existing websites for making money. These include both active income and passive income methods. For example, you could sell some used items or invest in creating some digital designs that then can be sold on merchandise. Again, devote a sizable portion of your time to passive income so that you can slowly build up earnings that will arrive on autopilot without any extra added effort.

Of course, a large portion of these sites do have their own respective apps. But these are certainly less involved in the gig economy, and more so in the longer-term projects that exist in the fields of photography, online marketing, graphic design and web development, for example.

Craigslist: This site has been the go-to resource for over a decade now for people that are looking to make a bit of extra money online. You can easily sell your used stuff, rent out a spare room in your home or apartment, and offer up your services to the world.

Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, a website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs.

Cafe Press: This website allows you to create digital designs that can then be sold on the platform. You'll earn a commission for everything that sells and you'll never have to deal with logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income.

Fiverr: Israeli-based Fivver was started in 2010 by Shal Wininger and Micha Kaufam. You can offer gigs as low as $5 but also get paid much more for upgrades and add-ons.

Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online.

Flippa: If you have a penchant for buying and selling, you could use Flippa, and its higher-end counterpart, Deal Flow Brokerage to buy and sell websites for a profit. You'll need to know what you're doing here, but you could easily make a sizable income by flipping income-generating websites for profit.

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 such as poster designs.

Shutterstock and iStockPhoto: Have a keen eye for photography? Why not sell photos on some of the leading photography sites. You'll need some design software skills to tag along. But if you do have skill in this arena, it's a great potential source for passive income.

Threadless: Similar to CafePress, Chicago-based Threadless also allows you to sell digital designs in the form of t-shirts and other merchandise such as phone cases, mugs, beach towels and so on.

Zazzle: Another great resource for selling online is to use Robert Beaver's Zazzle. The site is somewhat similar to Etsy and virtually anyone can make money online selling a variety of items here. From art to handmade items and customizable products, you can pretty much sell anything here.

Related: 5 Ways to Make Enough Side Money to Eventually Quit Your Job

3. Sell your own stuff

If you're ready to enter the ecommerce fray, you could sell your own stuff. Of course, along with selling your own stuff on your own website comes a whole slew of both responsibilities and technical configuration and requirements. For starters, you'll need a website and a hosting account. You'll also need a merchant account like ones offered by Stripe or PayPal. Then you'll need to design that site, build a sales funnel, create a lead magnet and do some email marketing.

You'll also need ecommerce software, fulfillment software, worry about warehousing, customer service and refunds. But that's not all. You'll also need traffic. Think search engine optimization, Facebook ads, and other social media campaigns. It is hard work, especially on your own. You could opt for Amazon's platform, which might be an easier route. But, then again, at the end of the day, this is a serious business, which could produce significant profits. So you're either all in or you're not.

Shopify: Want to build your own storefront? You could opt to create a Shopify store. You could also install WooCommerce as a plugin and run your ecommerce store from your blog. You'll need an SSL certificate and a way to process payments, but you might find this easier to get up and running fast to start selling immediately.

Fulfilled-by-Amazon (FBA): You could start selling on the largest online store in the world and not spend the time to build out your own infrastructure or worry about traffic. You will need to pay a commission, but most of the other processes will be automated for you.

Drop-shipping: Amazon offers one form of drop-shipping, but there are other resources for drop-shipping products that you'll never actually have to see or handle yourself. You'll simply need to close the sale. Providers like SaleHoo, Worldwide Brands, and many others, offer you a resource for drop-shipping your products.

High-ticket consulting or coaching: You could sell your own high-ticket consulting or coaching products from your website. You'll still need a website, merchant account, sales funnel, lead magnet and many other items. But you can easily earn a substantial amount of money from each individual customer, making it well worth the arduous setup required.

Related: Making Money Online: 5 Major Online Selling Opportunities for Any Entrepreneur

4. Sell as an affiliate

There are loads of resources for making money online as an affiliate. You could source products from ClickBank, Commission Junction, Rakuten Marketing, Share-a-Sale, Impact Radius and many others. Plus, many of the larger companies have their own affiliate programs as well. Do your due diligence and find the right company with a relevant product or service to your audience that you can sell as an affiliate.

In some cases, you will need an active website with substantial traffic to get approved. Selling as an affiliate isn't easy by any means, but if you do have the audience, it can definitely amount to a substantial amount of income.

Related: Why Affiliate Networks Are So Important to Online Affiliate Marketing

5. Start a blog

If you're serious about making money online, start a blog. Blogging is one of the easiest and most sustainable income sources. As long as the blog is setup the right way, in the right niche, with the right content targeted at the right audience, and the offer is complementary to the content, you could make a tremendous amount of passive income from a blog.

While some might think that starting a blog is an arduous effort, when you understand the precise steps you need to take, it becomes far easier. It all starts in the decision of choosing a profitable niche and picking the right domain name. From there, you need to build your offers. You can easily sell things like mini-email courses, training sessions and ebooks.

Related: 6 Ways to Turn Your Blog Into a Money Maker

6. Email marketing

If you're interested in online marketing, setup email software and create a lead magnet that you can use in your sales funnel. Then, build up that list. It's often said that you can expect to earn about $1 per subscriber per month. If you have a list of 10,000 subscribers, that means you can earn roughly around $10,000 per month. You will need to deliver value and not pitch them on every email, but it is a very achievable goal in a short period.

There are many ways to get people onto your list. Lead magnets are one such resource. For example, you can build ebooks, checklists and cheat sheets. But you can also do content upgrades, such as PDF versions of an article with added resources in them, four-part video training series, and more. Think about your audience and what you can offer them to better serve them, then treat them with some respect and you'll eventually reap the rewards.

Related: One of Facebook's First Employees Explains Why Email Marketing Is Better Than Social Media Marketing

7. Webinars training

Webinars are quite possibly one of the most potent ways you can make an exorbitant amount of money online. You'll need an audience to train and you'll need to know what you're talking about. Of course, this usually requires having a website and some semblance of an online presence. However, people can still do webinars without all of that. For example, you might have a sizable social media following and you train them every week on something to do with social media. But you will need a product to embed and sell at some point. Don't worry about it in the beginning. In my experience, the best webinar platform out there is GoToWebinar.

No matter what method you choose to make money online, understand that you might be able to make some money fast, but for the sizable returns, you'll need significant sweat equity. However, a year from now, you'll be happy you started today. Remember, time is far more valuable than money. Focus on creating passive income streams that will free up your time so that you can quit the rat race and focus on the things that matter.