TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Marin Software - Optimize your Search, Social & Display ads across channels and devices. Marin Software, the leading cross-channel performance advertising platform.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Kenshoo - Kenshoo provides marketing software and empower marketers with technology to build brands and generate demand across all media.
Burner - Disposable phone numbers -- now with MMS photo support
Google Marketing Platform - Google's unified and improved marketing and analytics tools.