Webcamoid - Webcamoid is a full featured webcam capture application.
Noor - Chat like you're in the office together
Kamoso - Kamoso is a webcam recorder from KDE community.
Commons - Private Clubhouse for your team to collaborate and connect
Cameroid - Just like Photo Booth - exept is online. Have fun with your webcam. Apply text and funny effects.
ZipMessage - ZipMessage replaces live meetings with asynchronous conversations.