Column organization of content is described. In an implementation, a mobile communications device configures a user interface to include a plurality of representations of content arranged according to a plurality of columns that permits navigation between first and second said columns upon detection of a gesture input via a touchscreen of the mobile communications device. The user interface is displayed on a display device of the mobile communications device. The first column is configured for vertical navigation through each of the plurality of representations and the second column includes a filtered subset of the plurality of representations such that at least one of the representations is included in the first column and not the second column.