A binder arrangement comprising a pair of covers hingably carried by a spine and containing at least one binder carried by one of the covers further comprising a case that encompasses the binder arrangement that includes flexible sidewalls that each comprise a skirt that extends along the side edges of each cover with one of the skirts releasably attached to the other one of the skirts by a fastening arrangement that is elastically anchored to the spine by a stretchable gather, and further including a material loop on the interior surface of said spine for slidably retaining d-ring attachment loops.

A searchable binder which is operationally compatible with a binder management system having a cabinet with shelves for removable storage of the binder. Each binder has a body with front and rear covers and a spine. Inside the body is a binder mechanism for removably retaining sheet media. Each binder has a binder contact mechanism mounted to the spine at the upper end, a binder lock mechanism mounted to the spine at the lower end, a binder identification circuit electrically coupled to the binder contact mechanism and the binder lock mechanism, and a visible indicator. The binder contact mechanism has a contact element extending outwardly of the upper end of the spine and engaged with one of several first conductive shelf elements of the binder cabinet. The binder lock mechanism has a lock bolt extending outwardly of the lower end of the spine with an end portion engaged with one of several grooved second conductive shelf elements of the binder cabinet to normally lock the binder in the cabinet. When a binder identification signal from a host computer is supplied to the cabinet conductive elements, it is transferred by the binder contact mechanism and the binder lock mechanism to the binder identification circuit. If the signal matches a binder identification code stored in the binder identification circuit, the binder lock mechanism is activated to the release position and the visible indicator is activated to aid the user in finding the binder.

A magnetic connector comprising a male part and a female part, in which said male part comprises a first side and a second side extending from said first side at an oblique angle thereto, in which said male part comprises a first metal portion comprising a first metal surface on said second side, in which said second side comprises a protrusion proud of said first metal surface, in which said female part comprises a third side and a fourth side extending from said third side at an oblique angle thereto, in which said female part comprises a second metal portion comprising a second metal surface on said fourth side, in which said fourth side comprises a slot for receiving said protrusion, in which at least one of said first metal portion and said second metal portion is magnetic and attracts the other.