I'm looking for affiliate networks that allow one to advertise via ads in applications. My first idea was Amazon. However, after reading the tons of things not allowed by Amazon, I've discovered that Amazon would consider an Amazon affiliate link in desktop software to be "offline" marketing, which they prohibit. I attempted to search online without any real results. I did find a company that I've heard of before, BuySellAds. That's about the only company or ad network that allows one to link in applications.