Cheese - Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share...
Iriun Webcam - Use your phone's camera as a wireless webcam in your PC or Mac.
Kamoso - Kamoso is a webcam recorder from KDE community.
iVCam - iVCam transforms your Mobile Phone / Pad into a webcam for Windows PC.
Webcamoid - Webcamoid is a full featured webcam capture application.
IP Webcam - A universal network camera adapter for the Windows operating system.