new hosts appearing between 2011-02-21 and 2011-02-28:
streaming-cinema.net
www.maerne.it
www.maxifoot.fr
www.moj.go.jp
www.theholidayspot.com
www.usp.br
www.xkcd.com

hosts disappearing between 2011-02-21 and 2011-02-28:
www.example.com
www.maxconsole.net
www.mikrotik.com
www.sharehoster.com
www.soumu.go.jp