Effin Amazing UTM Builder - Add UTM tags to your links from a Chrome Extension
Google Marketing Platform - Google's unified and improved marketing and analytics tools.
UTMBuilder.net - Easiest UTM tags builder
AdRoll - AdRoll is a leader in retargeting display advertising. Draw the right people with the right strategies.
InterestExplorer - Discover 1000's of hidden Facebook interests to target.
Smartly.io - Smartly.io is the leading Facebook ad optimization solution for agencies and performance marketers