new hosts appearing between 2011-06-09_0500 and 2011-06-09_1000:
www.ui.ac.id

hosts disappearing between 2011-06-09_0500 and 2011-06-09_1000:
www.cfos.de
www.cpanel.net
www.denic.de
www.flightaware.com
www.mcgill.ca
www.nist.gov
www.nlayer.net
www.sysu.edu.cn
www.umd.edu
www.vt.edu
www.weeronline.nl