new hosts appearing between 2011-08-21_1000 and 2011-08-21_1500:
www.itb.ac.id
www.tvoy-start.ru
www.udg.mx

hosts disappearing between 2011-08-21_1000 and 2011-08-21_1500:
toolserver.org
www.chatvibes.com
www.lima-city.de
www.uv.es