As an example of a large change in 2009, Facebook went from 150 million active users to 350 million active users ( http://www.facebook.com/press/info.php?timeli

As an example of a large change in 2009, Facebook went from 150 million active users to 350 million active users ( http://www.facebook.com/press/info.php?timeline http://www.facebook.com/press/info.php?timeline ). I consider that a fairly large change in the consumer web.