1)   CamSplitter 2.0
CamSplitter software allows to use one webcam device in multiple applications without locking the device. This software is designed to work like a bridge between one webcam device and several webcam software applications.

 2)   Multiply cam 1.2
Multiply cam is software for video splitting. You can do more with your cam.

 3)   MultiCamera 2.7
MultiCamera allows easily multiply video source in video chat or video conference software like Yahoo Messenger, ICQ, Skype Video, MSN Messenger, Camfrog, Pal Talk, AOL AIM, etc. MultiCamera provides a lot of features for video splitting.