Advanced Google Adwords - An in-depth look at using AdWords effectively
Madgicx - Ad performance beyond human limits
AdNabu - AdNabu is a Google Ads PPC automation software.
SENDER - Easy to use, powerful and affordable email marketing application.
Opteo - Opteo searches for statistically significant patterns in an account and creates "optimization tasks" to improve account performance.
AdEspresso - Optimize your Facebook Ads Easily, Like Morning Coffee