relationships. A key component of NoteCards was the "Browser card," which provided a graphical overview of the structure of linked notecards, facilitating navigation within complex information networks.

Operating on Xerox Lisp machines, NoteCards' primary impact was within the research community rather than as a commercial product. Its most significant contribution to the field of hypertext is often attributed to the insights gained from its use, Halasz identified critical challenges such as search and query in large hypertexts, composite