new hosts appearing between 2012-05-16_0800 and 2012-05-17_0800:
bol.uol.com.br                  has IPv4 200.147.67.181, 200.221.8.140 has IPv6 2804:49c:319:430::326 (ok)
www.freshdesignweb.com          has IPv4 199.27.135.49, 173.245.61.132 has IPv6 2400:cb00:2048:1::c71b:8731 (ok), 2400:cb00:2048:1::adf5:3d84 (ok)
www.mediabiz.de                 has IPv4 88.217.153.102 has IPv6 2001:a60:9003:a000::b00c (ok)
www.mikrotik.com                has IPv4 159.148.147.196 has IPv6 2a02:610:7501:1000::2 (ok)
www.sch.gr                      has IPv4 194.63.235.170 has IPv6 2001:648:2302:fd00:203:baff:fed2:cd07 (ok)
www.websitex5.com               has IPv4 23.21.55.10 has IPv6 2406:da00:ff00::1715:370a (ok)

hosts disappearing between 2012-05-16_0800 and 2012-05-17_0800:
www.blogfolha.uol.com.br        had IPv4 200.147.97.247, 200.147.97.246 had IPv6 2804:49c:319:430::331 
www.bol.uol.com.br              had IPv4 200.147.67.181, 200.221.8.140 had IPv6 2804:49c:319:430::319 
www.bookcu.com                  had IPv4 65.49.80.162 had IPv6 2001:470:1:b4::a1:a 
www.energy.gov                  had IPv4 74.121.199.68 had IPv6 2605:9f00::82 
www.hackforums.net              had IPv4 199.27.135.108, 208.115.245.75, 208.115.245.78, 216.245.194.195, 141.101.124.109 had IPv6 2400:cb00:2048:1::c71b:876c , 2400:cb00:2048:1::8d65:7c6d (failed)