Your administrator can assign you to subscriptions to content feeds. Subscriptions to content feeds are content feeds that Chalk™ Pushcast™ Software formats to play in the Chalk™ Pushcast™ Player. Subscriptions to content feeds are audio and video only. In the Chalk Pushcast Player, you can view, subscribe to, or unsubscribe from your available content feeds. When you subscribe to content feeds, you receive the most recent content feed for the subscriptions on the screen that lists content in the Chalk Pushcast Player. You cannot unsubscribe from content feeds that your administrator assigned to the group you belong to.