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.
Having several affiliates is not a guarantee of making money online. Studies show that a successful affiliate marketing campaign requires you to get the right collaborations that would drive traffic to your site. Whether these associates are big or small sites or even a combination of both, you must create and maintain strong relationships with the affiliates.
StackPath – CDN with 31 additional data centers (Cloudflare has 150+ data centers, but more data centers = faster content delivery). I get around $1,000/month by referring people to StackPath in my cache plugin tutorials. StackPath recently bought MaxCDN and their affiliate acceptance rate is much lower (depends on your potential volume) but most cache plugins converted to StackPath as their recommended CDN
As I shared creating blog would not be enough to start earning money you need to promote your blog through digital marketing which would help you to generate relevant traffic to your website. I would suggest attending our free demo session on digital marketing where we would be sharing how digital marketing can help you to promote your business or blog: http://digitalvidya.com/dmo
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 logistics like printing, warehousing and customer service. If you have some graphic design skills, then this is a great potential source for your web-based income.