See Who’s Editing Wikipedia

Wikipedia Scanner, which offers searches of edits on Wikipedia and cross-references edits with the owner of the IP address, has found some interesting corporate abuse of Wikipedia.

On November 17th, 2005, an anonymous Wikipedia user deleted 15 paragraphs from an article on e-voting machine-vendor Diebold, excising an entire section critical of the company’s machines. [...] In this case, the changes came from an IP address reserved for the corporate offices of Diebold itself.