If you have to earn $50-$100 commission you have to sell product of cost $500-$1000 (If you’ll get 10% commission). If anyone who is reading have the potential to sell product of this much amount then why not he/she should start selling his/her own product. And money ultimately comes when a service or product is sold! So if you can write an Ebook then write another which you can sell for money!
Once you have the affiliate links you need, it is time to present them to your audience. As you start using affiliate marketing to talk about products, you need to be aware of how your audience perceives you. If your website appears to be only after their money through an overwhelming amount of affiliate links, then they are more likely to simply leave your site.