His work has been shown internationally, including Tate Modern, South London Gallery, South Bank Center, New British Library, Whitechapel Gallery and Institute of Contemporary Arts, London; Tate Gallery and FACT Liverpool; Mappin Gallery and Site Gallery, Sheffield; Cornerhouse, Manchester; Ikon Gallery, Birmingham; Kettles Yard Gallery, Cambridge; Harris Museum, Preston; Maclellan Gallery and Collins Gallery, Glasgow; Centre de Georges Pompidou, Paris; Academy de Kunste and Kulturforum, Berlin; Rijksmuseum Twenthe, Holland; Centre for Contemporary Art, Warsaw; Musea Mimara, Zagreb; Macau Arts Museum; Cameraworks, San Francisco; Walker Art Center, Minneapolis; Paco des Artes, University of Sao Paulo; McDougall Art Gallery, Christchurch; Art Gallery of New South Wales, Sydney; Centre for Contemporary Photography, Melbourne, Curtin University Gallery, Perth and the Experimental Art Foundation, Adelaide.
He has participated in numerous symposia, giving keynote lectures at the Bienale of Electronic Arts, Perth, International Festival of Electronic Language, Sao Paulo and User_Mode at Tate Modern, London. He has also curated a number of exhibitions, for Site Gallery, Sheffield, Berlin Video Festival, National Museum of Photography, Film and Television, Bradford and the Adelaide Festival of the Arts.
Publications include CD-ROM's Great Wall of China and Book of Shadows (both Ellipsis, London); monographs Halo (Film and Video Umbrella, London) and Magnet (McDougall Art Gallery, NZ); Autopoeisis (with James Leach, Artwords, London). His work is featured in Internet Art (Thames and Hudson World History of Art series, USA), Medienkunst (Daniels, ZKM, Germany), Web Fictions (Fassler/Hentschlagen, Austria), Clicking In (Hershman, Bay Press, USA), Art and Animation (Channel 4, London), Digital Aesthetics (Cubitt, London), British Film and Video Artists (Curtis, London), Les Lieux de Video (United Media Arts, Canada) and Pioneers of Interactive Art (Dinkla, ZKM, Germany).
He is currently Professor at Edinburgh College of Art, UK.