Creative Market - Buy and sell handcrafted, mousemade design content like vector patterns, icons, photoshop brushes, fonts and more at Creative Market.
PortAudio - PortAudio is a cross platform, open-source, audio I/O library.
SocialSizes - Sketch templates for sharing images & videos on social media
OpenAL Soft - OpenAL Soft is an LGPL-licensed, cross-platform, software implementation of the OpenAL 3D audio API.
Designify - Turn any photo into awesome, automatically
JUCE - JUCE is a wide-ranging C++ class library for building rich cross-platform applications and plugins...