I am not Linda, but I will see what I can do with your question.
I wouldn't consider a pay per click campaign to be an affiliate tool.
There are some things you didn't include in your quesiton, so I'm not exactly postive as to what you are asking. When I first read it I thought you were asking as a publisher. When I read it again I saw it was possible you could be asking as a merchant.
You can get a lot of helpful information from forums, such as this one if you ask the right questions and give enough details.
In general terms, if you are a merchant you might want to consider AdWords
https://adwords.google.com/select/Login But ther are other possibilities as well.
If you are a publisher you might want to consider AdSense
https://www.google.com/adsense/ There are others besides AdSense which also could work.
It will be possible to give you a better answer if you indicate if you are a merchant with a program you want to get others to promote and you are willing to PAY for each click, or if you are a publisher who wants to place ads on your site and get PAID for each click.
It could also be helpful if you indicated what type of a site you have.
What goal do you have in mind?
It might be interesting to know why you have determined that mini sites are the best way for you to achieve your goal.
Depending upon your answers, our members could provide you with some helpful information.