UI Garage - Specific mobile and web design patterns for your inspiration
Google Marketing Platform - Google's unified and improved marketing and analytics tools.
Muzli - UI/UX and Design Inspiration Chrome Extension
Smartly.io - Smartly.io is the leading Facebook ad optimization solution for agencies and performance marketers
Design Hunt - Curated design inspiration for everyone
Marin Software - Optimize your Search, Social & Display ads across channels and devices. Marin Software, the leading cross-channel performance advertising platform.