Wayback Archives as a Law Tool

Carl Bialik from the WSJ writes "The Wayback Machine's internet archive and Google's cached pages are becoming indispensable tools for some lawyers, especially specialists in intellectual-property law. Dell has used copies of expired websites to get the domain name DellComputersSuck.com transferred to it, the Wall Street Journal reports. EchoStar used Wayback in a case against a Polish TV company. Playboy checks Wayback to look for infringers of its trademark bunny or other images. And Wayback was even used to discredit a witness and reach a mistrial in a Canada murder case."