Blogging can be very useful for monetization. As it is a medium of public interaction, it can be used as a source of information with many affiliate links and ads. Various ads are of various values. Some are cost per action, some are cost per click, and some are cost per view. If you use cost per action, you have to pursue your blog reader to take an action on the corresponding link. In this case you have to careful. Give your blog reader qualitative information. Once you have gained the trust of your reader pursue them to take action. You can promote your own product or others product. Write the good qualities of the product. You can do some search engine optimization here. Take care about the keyword density of the targeted product. Be honest to your reader. Present a crystal clear report.