Since time is the most precious commodity on this earth, 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. It's obvious that this is the preferred route, but clearly the road less traveled.
Although this line of work is seriously threatened by automation, there are still plenty of data entry jobs available in India. It is one the simplest jobs you can do online, and requires no special skills. You just have to have a computer, Internet connection, fast typing skills, and the ability to pay attention to details. Most freelancing websites list these jobs, and you can sign up on any of them to start earning in the range of Rs 300 to Rs 1,500 per hour.
If you get THAT clear and believe in some product, go ahead. Your audience trusts your word. But most folks need to use or experience before they can get clear, because they have a fear: the fear of using trust. I am slowly losing that fear but still use what I promote, before I promote it. I also just sell my stuff mainly. Since I have quite a few products and eBooks and services to sell.
That way, if you decide to write a review to promote it or send the affiliate link for the product's sales page to your email list, etc., you will have first-hand knowledge of how it works. This will help you to decide it the product has real value pertaining to your niche. I, personally, won't sell anything I haven't tried myself to be sure they work as advertised. Selling just to make money with no real value is a sure way to lose customers and ultimately destroy your business. Bad reputations are hard to get rid of once you get one, especially when there's money involved. With that being said, I hope you all have a great holiday season.
Outbrain is not necessarily the network of choice, it was just an example. As for tracking the ROI usually you'll want to track campaigns in Google analytics and track clicks on affiliate links as event and average value/email or you'll want to duplicate the post and run paid traffic to the duplicate so you know exactly what the conversions are as you can put them in separate email lists etc too.
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. 
The concept of affiliate marketing on the Internet was conceived of, put into practice and patented by William J. Tobin, the founder of PC Flowers & Gifts. Launched on the Prodigy Network in 1989, PC Flowers & Gifts remained on the service until 1996. By 1993, PC Flowers & Gifts generated sales in excess of $6 million per year on the Prodigy service. In 1998, PC Flowers and Gifts developed the business model of paying a commission on sales to the Prodigy Network.
Equally, you can charge businesses to ‘claim’ their listing, a method used by many large directory sites like Google Business and Yelp. This involves companies paying to upgrade their listing and adding information such as their web address, social media links, images, and more. Other revenue streams include charging for ad space, adding affiliate links and even charging for services and products on your directory site.
The problem with affiliate marketing, like many other home business options, are the so-called gurus and get-rich-quick programs that suggest affiliate marketing can be done fast and with little effort. Odds are you've read claims of affiliate marketing programs that say you can make hundreds of thousands of dollars a month doing almost nothing ("Three clicks to rich!"). Or, they suggest you can set up your affiliate site, and then forget it, except to check your bank deposits.