AppGrowthLab (by SplitMetrics) - 55 app growth lessons from 30 app marketing experts
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
The Creative Marketer - Techniques & tools for copywriters, marketers, and creatives
HubSpot Marketing Hub - HubSpot is a cloud-based inbound marketing software that allows businesses to transform the way that they market online.
Gio UI - Gio is an open source library for creating portable, immediate mode GUI programs for Android, iOS, Linux, Windows, macOS.
Looker - Looker makes it easy for analysts to create and curate custom data experiences—so everyone in the business can explore the data that matters to them, in the context that makes it truly meaningful.