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. 
Secondly, I notice that your blog earns you some good money. I am surprised to know that you get over $100,000 per month. I also have a blog – http://www.golaserengraving.com/blog – which I want to monetize and I have tried Infolinks Ads and PropellerAds. What other better options can you advise me to venture into to make reasonable amount of money?
When i started this blog last year (2015), my goal was to publish a post at least once a month. I did that and i managed to make quite a lot of money from that small content. So now that i’m comfortable with that, i’m raising the bar to ten blog posts a month. This will boost my organic traffic and of course i’ll make money online fast than i did last year.
Write pitches. If you have located a client for whom you want to write, send pitches, which are topic ideas for articles. Write pitches that not only show your expertise, but also demonstrate your enthusiasm for the topic. First, read the publication to which you are sending pitches to familiarize yourself with what they publish. If applicable, identify a specific section and send our pitch to the appropriate editor. Also, include a brief summary of who you are.
Now, unfortunately, there are a lot of scams when it comes to GPT sites. So it’s best to stick with well known, trusted sites that have been around for a while. You don’t want to complete offers for a month then when it’s time to cash out your earning find out that the site no longer exist. Trust me, I have seen a lot of “here today, gone tomorrow” rewards sites.
Find work. When you first start out, you may have to accept work writing about a topic you don’t find all that interesting. You must keep an open mind and be willing to accept work that may not be in your desired field. However, as you continue to write, you not only learn about more topics, but you also build your reputation. With time, you can be choosier about assignments you want to accept.
So, I started reading and learning about affiliate marketing and blogging. I combined the two and after a 14-15 months of really hard work (sitting in front of computer for 14-6 hours a day and putting things I had learned, into action (building a blog, writing articles, promoting the site, etc), I started making enough money that I started believing in myself and the idea that I too could make a full time income online. From then on, I just kept on going and the income grew and grew. Now, I still work 8-10 a day on my online business, and sometimes even more. You have to constantly work and maintain it. Most people think because its online, its easy. That’s where they get it wrong.
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.
Ebay is a bellwether. It's been around since nearly the start of the online boom. But, like any other platform, success can seem fleeting if you don't know what you're doing. Selling items on eBay, professionally that is, can be an art form. Getting people interested in your auctions isn't always easy, especially when there's hefty competition and low demand for what you're selling.
You can sell your ebooks through Amazon's Kindle program or Apple's iTunes Connect, which gives you access to a large majority of the digital-book reading market and the barriers for entry are incredibly low. You don't need to invest lots of money to make this happen, but you do need to invest lots of time, not only in writing the ebooks, but in marketing them as well.