Publisher under fire for fake article webpages : Nature News & Comment

"An online debate is swirling around a tactic that academic publisher John Wiley & Sons uses to fight online piracy. The company created a webpage, accessible by several URLs, that appeared to be an academic paper to automated downloading programs. But any users who accessed the URLs were then blocked from viewing other Wiley content. Wiley and other publishers use these ‘trap’ URLs — which are invisible to most human users — to detect and prevent unauthorized downloading and republishing of their content."