such as contact information, playlist, bookmark, etc. These records have defined structure (property-value relationship) which can be handled better than general property list. But values of these properties are too flexible to be stored in database, for example, a contact information may have multipe home phone numbers. Records can be grouped and groups can have groups inside. AddressBook framework from Apple provides a good machenism of handling these kind of records and Addresses for GNUstep implements the same interface. CollectionKit aims to provide a general storage facility based on Addresses for GNUstep so that other applications and frameworks can easily handle their information in the same manner. CollectionKit provide very little pre-defined properties. Therefore, a framework on top of CollectionKit is needed if the information is intended to be shared by many applications. WWW: http://www.etoile-project.org/