new hosts appearing between 2011-07-29_1000 and 2011-07-29_1500:
www.cfos.de

hosts disappearing between 2011-07-29_1000 and 2011-07-29_1500:
www.ietf.org
www.inspaceworld.com
www.justice.cz
www.mikrotik.com
www.uv.es