The Ars Memoria creates a framework of experiences and ideas for an information system that ties the realm of paper information and museum like tangible objects to the dematerialized digital world: looking for new ideas in old things and relating old principles to the latest discoveries. It works to enhance recall, reuse and reconfigure experiences and ideas by;
- combining objectifying knowledge systems with idiosyncrasies of personal insights and;
- allowing associative interplay between tactile, textual, pictorial and auditory information items;
- tracing sources up- or down-stream through a delta of connections or drifting of arteries;
- easing the repetitive tasks of track keeping thus freeing time and energy for discoveries and insights through a "combinatory art" (ars combinatoria).

Continuous reconstructed databases, a bricolage of disparate units where elements are roped and mashed together, keeping the system just afloat while on its way... Grouping of repeatable knowledge and routines in sets of "knowledge wheels" that can be connected or split up at will (avoiding an over-centralised information architecture). This is an ever lasting "work in progress" evolving from paper based filing and organising techniques to computer based methods and combinations thereof, over thirty years, for projects in the fields of art, action and academia. Some examples are/have been: Vrije Archief Nieuwmarkt (squatting and urban issues, planotheque) 1972-1986, Documentation Center of Modern Social Movements (University Library Amsterdam/International Institute of Social History) 1973-1998, CLAVIS (Controlled Language Visual Information System)1986-1998, Europe Against the Current database 1985-1990, Imaginary Museum of Revolution 1988-1992, Orbis Pictus Revised 1991->, Literary Psycho-Geography 1977->, Unbombing the World 1988->, Ideas of Visual Language 200->.