Cost Per Action or CPA is the highest paying online advertising that works today, with commission ranging from $1-$25 for every sign-up or a 10 percent payment for an actual product purchase, what can you lose? And if you are a blog owner, this is an easy and lucrative way of monetizing from your efforts. However, negative reactions on online advertising which includes cost per action or CPA strategies had already been proliferating even before its birth. Which poses the question, is CPA really good for the customers, the affiliate, and the merchant?A cost per action advertising works with at least three parties involved; the merchant site, the affiliate site, and the customer. For example, the merchant site is the Amazon Associates, the affiliate site is your blog site, and the customer is one of your readers. Given the three parties involved, here are the following benefits each party will gain from cost per action or CPA:1. As a merchant - Merchants have minimal risks in …