S. Harnad. Exploit Interactive, (May 2000)Earlier Shorter version: Harnad, S. (1998) The invisible hand of peer review. Nature online (c. 5 Nov. 1998) http://helix.nature.com/webmatters/invisible/invisible.html Longer version: Harnad, S. (2000) The Invisible Hand of Peer Review, Exploit Interactive, issue 5, April 2000 <http://www.exploit-lib.org/>: http://www.cogsci.soton.ac.uk/\char126harnad/nature2.html http://www.princeton.edu/\char126harnad/nature2.html.