The Internet is Forever: The Wayback Machine
An attorney may need to present evidence of the information on the web site of a business at a particular moment in time. Rather than preparing a subpoena to get the data from a party that may or may not have it archived, check out The Wayback Machine. See: http://archive.org/web/ . This archive does not have the information for every web page of every site on every day, but it does save multiple web pages from a very large range of sites at regular intervals.