new hosts appearing between 2011-08-07_1000 and 2011-08-07_1500:
www.cfos.de
www.iij4u.or.jp
www.servage.net
www.uni-muenchen.de

hosts disappearing between 2011-08-07_1000 and 2011-08-07_1500:
toolserver.org
www.geneanet.org
www.hardlywork.in
www.uni-koeln.de