I ran across a CPA network called ADCENTER which seems to focus on websites that offer downloads.
So if you have a downloads website then you can easily place their download banners on your website’s download pages, their banners looking something like this:
So they will really generate a lot of clicks if you place them on your downloads page.
This is a CPA network so you will be paid when a visitor you send signs up for their offer.
You can get paid $17+ per sign up depending on the country, Countries such as UK,US can pay around $24 per sign up.
Give them a try and see how this download cpa network can work for you.