Try affiliate marketing. This means promoting someone else’s products or services for pay without actually carrying an inventory. There are many ways of incorporating affiliate marketing into your website/blog/page including banner ads (which are generally ineffective, as people tend to avoid these), linked articles (which are quite successful when the article content is thoughtful and doesn’t appear spammy), and product-placement videos (which can be very successful when done by people with charisma or a good sense of humor). You can even become an affiliate marketer without a website. Basic ways of making money through of affiliate marketing include:
A great book. Should be able to convince anyone that they do not need to start with single family homes and move up. Multifamily is the BEST place to start. I am currently putting lots of his ideas into practice in my business, and refocusing my business to be a "property turnaround specialist." Totally worth $.99. But just remember...like most of these $.99 authors, they are actually pushing you to buy their full "course" or "mentoring." Still, in between the hype and self-promotion, there is good info here.
What does that mean for you? It means Nielsen will pay you $50 a year to keep their app on your favorite internet browsing device. The app itself collects statistics on your internet usage anonymously, so you never have to worry about any data being linked to you. And the best part is, the app takes up barely any space and doesn’t slow down your phone or tablet at all!
Find a profitable niche. Starting with your interests, write down as many niche ideas as you can. Think about topics people might search online. Ideas include passions (like surfing or body building), fears (like spiders or speaking in front of crowds) and problems (like getting out of debt). Do keyword research to see it others are interested in the topic. Find out if a domain name is available that matches the keyword 100 percent. 
If you have an eye for design and some experience of creating websites, then you could offer your services as a freelance web designer. You will need to create your own stylish website and have a few other projects that you can show potential clients to demonstrate your skills. You will also need to initially spend time emailing businesses to promote your services and find work.
Dating sites and apps are extremely popular and have become more and more niche as the industry develops. They can also be very profitable, as there are many ways to monetize them. You can charge a joining fee, provide premium subscriptions, or make money from advertising on your site. White Label Dating provides a pre-built dating platform for your project. You simply choose the niche and branding for your new dating site. Once your website goes live, you just need to promote it, manage the users, and collect the earnings.
6. IZEA – IZEA works in addition to a blog or on its own. You get paid to blog, tweet, take photos and take videos. The pay is mostly based on your following, so if you want to make money with your tweets, you’ll need to grow you Twitter following. Likewise, if you want to make money with blogs, you’ll need substantial blog traffic (more on blogging below).
Some membership sites charge monthly, quarterly, or annually. Which can be a nice recurring business model to enjoy. In this day and age, who you know matters more than what you know. That makes paid communities a great way to surround yourself with rock stars from all over the globe. Plus, most communities include a forum or some sort of group where the members can interact and answer each other’s questions.
And while it will take time to build up a big-enough audience to attract advertisers and other ways to make extra income from your podcast, the opportunity is there. John Lee Dumas interviews entrepreneurs seven days a week for his podcast Entrepreneur on Fire and now makes more than $200,000 a month from it. In fact, John publishes all his income online and showed that he’s made almost $13 million since launching in 2012.
Whether you have a website or are still dreaming up ideas for a blog, you can also look into affiliate marketing. With affiliate marketing, you partner with brands and businesses within the content of your website. If you mention a product or service, you link to that produce or service using a unique affiliate code you received when you signed up for that particular affiliate program. From there, you’ll make money any time someone buys a product or service through your link.