WikiScanner (also known as Wikipedia Scanner) was a publicly searchable database that linked millions of anonymous edits on the free online encyclopedia Wikipedia to the organizations where those edits apparently originated, by cross-referencing the edits with data on the owners of the associated block of IP addresses (WikiScanner did not investigate edits made under a username.)
https://en.wikipedia.org/wiki/WikiScanner

Voir également : http://wikiwatchdog.com/