Josh McWilliam, “How Does the Google Maps Traffic Feature Work? Where Does the Data Come From?”, Bright Hub, September 24, 2010, http://www.brighthub.com/internet/google/articles/46896.aspx; Frederic Lardinois, “Google Maps Gets Smarter: Crowdsources Live Traffc Data”, ReadWriteWeb, August 25, 2009, http://www.readwriteweb.com/archives/google_maps_gets_smarter_crowdsources_traffc_data.php
