414 via a communication channel 424 server 412 and server 414 may communicate bi directionally with each other via communication channel 424 furthermore clients 402 404 local networks 406 408 global network 410 and servers 412 414 may each communicate bi directionally with each other in one embodiment global network 410 may operate as the internet it will be understood by those skilled in the art that communication system 400 may take many different forms non limiting examples of forms for communication system 400 include local area networks lans wide area networks wans wired telephone networks wireless networks or any other network supporting data communication between respective entities clients 402 and 404 may take many different forms non limiting examples of clients 402 and 404 include personal computers personal digital assistants pdas cellular phones and smartphones client 402 includes a cpu 426 a pointing device 428 a keyboard 430 a microphone 432 a printer 434 a memory 436 a mass memory storage 438 a gui 440 a video camera 442 an input output interface 444 and a network interface 446 cpu 426 pointing device 428 keyboard 430 microphone 432 printer 434 memory 436 mass memory storage 438 gui 440 video camera 442 input output.