Affiliate marketing allows you to recommend products and services from other companies and be paid a commission if someone buys the product as the result of your recommendation. To track which purchases happens as a result of your recommendation(s), the merchant will provide you with a special link to use when linking to their website that contains a unique referral code assigned to you. If people click that unique link, and buy the product or service within a specified timeframe (the timeframe varies depending on the merchant), you get a commission on the sale.
This has become a popular business model for online entrepreneurs over the past several years, and will probably just continue to grow in popularity. The best thing about selling online courses is that once you do the up-front work in creating the course and setting up your marketing strategy, you can get paid over and over again for work you do once.
If you’re willing to take on some risk and have the heart of a true hustler, you can make extra money online doing commission-only sales for startups and other businesses. While you won’t be getting a regular salary, with the right sales strategies and skills as an inside sales rep, you can make decent money for each sale you bring in. And because you’ll most likely be working with startups, if you can negotiate a little equity you could profit big time if you're pitching a solid product and the startup succeeds.
In case of the latter, you will have to spend money on domain name and server hosting space that can cost you between Rs 3,000-Rs 5,000 a year. Self-hosted blogs have an added advantage that it allows you to customise elements and functionality of your website. In case of the former, you need to make peace with the tools and plug-ins made available by the service provider.
Watch them. How are other content creators in your niche utilizing advertising? What types of ads do they use? What are they promoting? What do they talk about repeatedly (if you keep seeing the same affiliate product show up again and again, there’s a good chance they’re making good money from it)? If you see a product or service they talk about that jogs your memory and you can ethically promote it too, find affiliate information by the methods described above.
If my piece of content is so unique and valuable around hiking backpack recommendations, that other reputable outdoor websites are willing to link to it and build the page’s authority, then I’d have a very real opportunity to rank high in organic search for these search terms (meaning, my page will come up first when someone searches for hiking backpacks).