Ideliance is a precursor of so-called Semantic Web. FIrst version was developped in 1993. It allows individuals and groups to organize their personal or collective / corporate knowledge as a semantic network. This document is a presentation of the product written in year 2000. Ideliance has been marketed for large companies like Air LIquide, France Telecom, PSA, CEA, EDF, GDF, Danone, Merckk. It has been used in Military Intelligence applications. It has been designed by Sylvie Le Bars (Arkandis.com) Jean Rohmer, and implemented mainly by Stéphane Jean and Denis Poisson.