Garfield, Steve. 2004: The Year of the Video Blog. Steve Garfield's Video Blog. Steve Garfield. January 1, 2004 [April 25, 2011]. (原始内容存档于May 10, 2011).
Garfield, Steve. 2004: The Year of the Video Blog. Steve Garfield's Video Blog. Steve Garfield. January 1, 2004 [April 25, 2011]. (原始内容存档于May 10, 2011).