“…These include Notes [9], a physician's notebook [1], a prototype of a biologist's notebook [10] and NoteCards [5]. If the constraints are relaxed to allow collaborative systems, other examples appear, such as the Virtual Notebook System TM [4,11], and Lotus Notes® [3]. We will not consider systems tailored to support specific tasks, such as capturing and elaborating on design rationale (e.g., [2,13]); their degree of structure and formality make them quite different from systems directed towards the easy capture, management, and transformation of personal Permission to make digital/hard copies of all or part of this material for personal or classroom use is granted without fee provided that the copies are not made or distributed for profit or commercial advantage, the copyright notice, the title of the publication and its date appear, and notice is given that copyright is by permission of the ACM, Inc. To copy otherwise, to republish, to post on servers or to redistribute to lists, requtres specific permission and/or fee.…”