--#Receiving computer. ID 0
local id, message = rednet.receive("my,message") --# Something I failed to mention, if you set a protocol as the first argument, it will still work
print(message)
--#Sending computer one
rednet.send(0,"Hello")
--#Sending computer two
rednet.send(0,"Hello There","my,message")
--#The receiving computer will print out:
"Hello There"