Digital Soda is a simple GTK+ frontend for the "DSO-2250 USB" oscilloscope.
OpenHantek is an application for controlling Hantek (Voltcraft/Darkwire/Protek/Acetech) USB DSOs based on HantekDSO. It draws charts using OpenGL and allows triggers, time base, math functions, and other settings to be manipulated.
A utility for monitoring Unix system services.
A C implementation of the DKIM message signing/verifying standard, both an API and a filter.