Insert advertising on your blog
Advertising is one of the main revenue sources for websites. However nowadays it is possible to make some money by inserting advertisings (banners, sponsored links) on your blog.
Modules for e-commerce, sometimes proposed by Amazon/ e-bay can be added on your blog. If however someone orders an article on your blog, you will receive a percentage.
You can even try for advertising services which will inspire advertising according to the topics of your blog. This is currently being done by Google and Criteo.
Provided that the advertising matches the content of your website, you will charge a fee each time a user click on your website.