This is one of the most direct ways of doing affiliate marketing business.
So basically the affiliates will just start off with a list of targeted keywords and then place advertisements that will be revolve around the keywords.
Although this method seems to be useful, it is not applicable to all the products.
The worse mistake that the affiliate can make is to send the traffic from the pay per click ads directly to the merchant's website.
This is because if the customers do not buy the product and he leaves the website, you have lost your customers forever.
What you will have to do is to capture the visitor to your opt in list before you send him to your affiliate link.
So even if the customer did not buy the product, you still have chance to contact and build a relationship with the customer through the email.
This will be very important if you are promoting a information products.
However, there are times when it will seem more logical to send the traffic directly to the merchant's website.
This will be the case when you are promoting for merchant with huge shopping cart websites which sell certain kinds of physical products like electronics gadget, shoes etc.
Thus it is important for you to really know what the nature of the product is, then you will know how to make good use of the traffics that you will be getting from the pay per click ads.
Although it is the fastest way to get traffic, it can also be the fastest way to lose your money too.
So do learn on the things that you will need to know about pay per click marketing to prevent you from losing your money.