Spike's most noteworthy contribution to contemporary art has been his involvement with the Biennale Internazionale dell'Arte Contemporanea, Florence, Italy - more commonly known in English as the Florence Biennale. He was a member of the Jury for the inaugural exhibition in December 1997, and thereafter served as director from 1998-2005. In 2005, Spike was also the sole juror of the Turku Biennial in Turku, Finland as well as a member of the jury for the Triennale of India in New Delhi.