My IP Address Lookup and GeoTargeting - Community Geotarget IP Project - domain to IP lookup, what country, city IP addresses map to - IP Trace

Angryiber Software - free software for internet, analyzing networks (ip scanner, port scanner), remote administartion and so on

The reverse IP address lookup at IP-Adress.com allows you to find a list of domains hosted on a particular IP address. Check out the free search today!

Easy to use web-based service.