Country to IP Address Reference
http://www.proxyserverprivacy.com/ipaddress_range.php
Default Password List (another)
http://www.cyxla.com/passwords/passwords.html
DiG Gateway
http://www.spacereg.com/a.rpl?m=dig
digitalpoint DNS Zone Xfer
http://www.digitalpoint.com/tools/zone-transfer/
Fixed Orbit (ASN & BGP Info)
http://www.fixedorbit.com/search.htm
GeekTools (Does DNS AXFR)
http://www.geektools.com/tools.php
Graphical DNS Tools
http://www.zonecut.net/
HTTP Viewer
http://www.rexswain.com/httpview.html
InfoSysSec Online Tools
http://www.infosyssec.com/infosyssec/ipsectools.htm
Internet Topology Tools
http://www.caida.org/tools/taxonomy/topotaxonomy.xml
MD5 Hash Reverse Engineering Site
http://md5.rednoize.com/