What is CPA?

You were in MMO long? Surely you would be interested CPA What is right?!

CPA (Cost per Action) , also known by other names such as: CPL (Cost per Lead) or CPS (Cost per Sales).
This type of advertising has the highest requirements in the form above, but in return you earn the most money if done well.

True to its name, Cost per Action, not only to display advertising as  CPM , click is not only money as CPC , but CPA requires the user to click on ads and perform one or a sequence of actions next click it, will we have the money. These actions will be specified by the advertiser. It is easiest to register, register to receive an email introducing the product or service that the survey respondents, trial and give opinions on a new product, etc. the highest level is the user must own money to buy a product or service that advertisers offer you to earn money. Now, as you can see is a sales agent or introducing products to advertisers.

- Pros: Earn the most money. Do we have the highest requirements should amount you earn from them will be highest if you perform well. CPA also does not require your blog and more people see it or not, they do not depend on users to click more or less, but they depend on the final act of the reader. Maybe others have more viewers than you, their readers click on the ads than you, but readers on their blogs do not perform "Action" that advertisers eventually require multiple readers on the blog your doing, you still earn more money than them.

- Cons: Difficult to earn the most money. Readers do not also accept the implementation of the action that the advertiser requires. Maybe they just click on the ad, if deemed useful, they also read, otherwise they will not care what it is. The most difficult thing is that you have the reader how to accept the implementation of the action that the advertiser requires. This is not easy if they have to pocket out.
After the last known ad forms above, you would choose for your blog?

It is difficult to answer with certainty is that you will choose the type of ads because it also depends on the type of subject you write, you read of people and certain intervals.

Ideally, you should combine all the above types of advertising to maximize revenue for your blog. Each form has its own advantages and disadvantages, so if they are combined with each other, complement each other will help you to optimize income. However, the priority for most forms and focus on developing the form that's a good thing to do. In other words, in the business, we call that is focused on developing comparative advantages.