Memento Mori
http://memento.ieor.berkeley.edu/

The Telegarden (1995)
http://telegarden.aec.at

Legal Tender (1996-97)
http://www.counterfeit.org

The Invisible Cantilever (1996)
http://www.ieor.berkeley.edu/~goldberg/flw

Shadowserver (1977)
http://taylor.ieor.berkeley.edu/shadowserver/index.html