Affiliate systems could have different forms but generally speaking it is pretty similar to AdSence. The biggest difference is that you’ll get paid per action. Well if we are looking what happens in PPC world then all the bigger players are using PPA form as well. Why? We all want to be effective and pay only for the valuable traffic, especially in todays economical climate. So it seems to be the most reasonable form for both sides. And yes, this is the part where affiliate systems are coming in.
One is clear internet ads (AdSense for instance) do not bring $ right away, the same thing is with affiliate systems. The main reason is that the blog/website owner do not know all the aspects he/she should consider. The thing is that you are very lucky if you just put up an ad and will start earning a lot. In real life you would have to do some activities and it will take few months before AdSense or affiliate systems will start bringing money in.
Here are small things that could help you:
1. Define who is the target group
At first you should know who is the target group of that ad, what are the benefits they are getting etc. It you have made it clear then you are able to move to the next phase (what is the trigger and ad optimization).
2. Know what triggers the target group
So what is the hook or the cookie which brings clicks and eventually money? In todays world where we have so many ads and other flashy stuff it is important to be short and simple. So find out what is the key benefit the site visitors could get from the affiliate system you are promoting.
3. Optimize the ads
When you know what triggers people it is time to see what works and what isn’t. With flash banners it is difficult, but with text it is easy. Try different text variations and different places, measure the results and concentrate on best deforming ones. BTW in some cases it is great to divide your visitors into different groups and send them different messages.
When you can use your affiliate code (not only flash or text ads) you can also expand the medium possibilities. Try Twitter, social networks, IM mood messages, forums, blog commenting – these things can bring great results. Only thing is, find the right target group and message.
4. Bring additional traffic to your blog/website
If you are having a blog or a website then the last step would be to get additional traffic to the site, basically to bring more relative traffic who will turn it into money. How to do it? Become an expert- write about the topics that will interest those people. Register yourself to online directories, write about relative topics, create few forum posts and link them to your blog posts (the post has to have added value) and you can see the results after some time.
All in all, you don’t have to do much to become a good affiliator, but you have to be consistent. So why don’t you start today 
Affiliate sales sound so easy, and there are just so many pitfalls.To get good affiliate companies are really tough to find. If you’ve got one, keep it! If you don’t, drop it
[...] and questions ever since we launched it back in February. And since you asked, we gave you some tips and finally created a growing Affiliate Advice section that sits right in your Affiliate account. [...]