skype help with webcast

hey i really need help and im feeling stupid asking this because its probably a simple question. i do webcasts on as an entertainer and i have skype, what im trying to do it have my skype play through my webcast so the people in my room can hear my mic and also hear the person im talking to on skype. someone please help me
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Skype's help page delivers some insight about: Avoiding call echo, Avoiding background noise, One way sound, Robotic sound, Words cut off, Delay James/Eurominuteman