A method of controlling a digital apparatus, and which includes displaying, on a display of the digital apparatus, at least first and second display regions, the first display region configured to display a broadcast program and the second display region displaying social network contents; receiving, via an input unit of the digital apparatus, a selection signal indicating a selection of at least a part of the displayed social network contents; converting, via a controller of the digital apparatus, the selected part of the social network contents into image data; receiving, via the input unit, a moving signal indicating a movement of the converted image data on the display; and executing, via the controller, a predetermined application based on the movement of the image data.