If you’re a blogger, start by going through your analytics and finding your most popular posts. In Google Analytics (GA) you can find these pages by going to your GA Dashboard > Behavior > Site Content > All Pages. Examine the ones at the top of the list that bring in the most traffic. Are there any affiliate products or services you can naturally include in them?
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 printing, warehousing, customer service and so on. The site has over 2 million independent designers that have created products being sold online here. If you have some graphic design skills, then this is a great potential source for your web-based income.
25. Products – You can create your own product, such as an ebook or computer software. You would then use your blog as a promotion tool to get people to buy your product. As long as you create a legitimate product with a whole lot of value, you should be able to get some buyers, but like everything else with a blog, you’ll need the traffic to get the sells.