SPLITCAM-FREE software allows to use one webcam driver in multiple applications.
Normally you can only connect one application to a single video capture source. SplitCamera is a freeware virtual video clone and split video capture driver for connecting several applications to a single video capture source. Usually, if you have a web camera or video camera connected to your computer, you cannot use it in more than one application at the same time, and there are no standard Windows options that make it possible. Split Camera driver allows you to easily multiply your web-camera (any model), video cameras (analogue or digital including VHS, DV, TV-IN or TV-tuner). These can be added to video chat or video conferencing software like ICQ, Yahoo Messenger, MSN Messenger, Skype Video, Camfrog, AOL AIM, Pal Talk and more. The maximum connection is for up to 64 clients in a single video source. You can also use splitcam to send your home videos at the same time to many video conference programs such as a friend using MSN Messenger that can see your home video while another friend uses Yahoo messenger can see it too. This program is an excellent idea although in reality, coordinating between multiple messengers or video sources can become very confusing. The setup process is also tricky and you might find yourself spending more time trying to get simultaneous images than actually using it.
BDHSoft VideoToolKit is a toolkit for video/audio process.
VideoThang: the world's easiest video editor, and it's free
titels,credits,trailers,itineraries,videowalls,effects for most NLEs as plugins
Post-production software for videos and images
Avi Resize Tool can adjust the size of avi video