In many Glow Meets, people share content which could be documents or powerpoints, computer screens or whiteboards. The Share pod in Adobe Connect allows you do to this if you are the Host or the Presenter.
In a Glow Meet room you could have one share pod to share all content or you could have multiple different Share pods each sharing its own content e.g. if you have 2 presenters you may wish to have 2 room layouts each with their own share pod.