making money with CPA

CPA simply  means cost per action, which simply means you are paid for every action you perform in the network, the network normally have products from different companies which are you are allowed to market for a commission.
therefore, the first thing you do is join the network as an affiliate then you look for products that are in your niche and promote them, the company usually provide you with promotional materials to enable you do effective promotion that is things like banner, text links etc. you either place this promotional materials in your website or blog or send them as message there are many ways you can get people to see this offers though that depends on your promotional methods.
the most important thing in CPA is traffic, getting lots of traffic to the product you are promoting. you niche usually determines the type of product you promote, for someone who is promoting health products this net work coprosper
and moreniche can be best this could also be good for general products niches
 here and here