ManyCam Free helps you to use your webcam in many webcam and audio application in a single time. Like Skype, MSN, Ustream, and so on.
It has some amazing audio effects. Which makes your video more attractive to viewers. Most popular effect is Voice Changer. It change your voice to other voices. You can also create you own audio effects.
You can draw anything on your video windows even your in online broadcast. You can also add text on it.
You can also record your desktop screen like a screen recorder using it.