<p>Embodiments of the invention relate to dividers with tabs adjustable along at least two edges of the binder. One embodiment is directed to a divider for use in a binder. The divider comprises a panel (3), the panel comprising a binding edge and a plurality of non-binding edges, and a tab (5). The panel comprises at least one binding feature adjacent the binding edge and at least one tab mating feature adjacent at least first and second edges of the plurality of non-binding edges. The tab is configured to mate with the at least one tab mating feature. The at least one tab mating feature is configured such that the tab is positionable in at least two longitudinal positions along the first non- binding edge and in at least two longitudinal positions along the second non-binding edge.</p>
