Whereby (formerly appear.in) - Collaborate from anywhere - video meetings with no downloads
KiCad - A Cross Platform and Open Source Electronics Design Automation Suite
Around.co - Around.co is an app that provides video calls to remote teams all around the world.
Proteus PCB design - Proteus PCB design combines the schematic capture and ARES PCB layout programs to provide a...
Remote Meeting - Remote Meeting with Video, Voice, Chat and Screen Sharing
QUCS - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.