|Geektools Whois||BW whois||The Elephants' Toolbox||
Visual Route (click on 'Live Demo')
Net World Map
My simple gh (get hostname) tool can still be useful in some cases:
The latest version gh 1.46 (HTML 5; Feb 23, 2015) is here to download.
You can either install it on your own site as above, or use it at the command prompt on any computer connected to Internet (and with Perl installed).
List of Whois servers (if all the above fails):
An old one-way Dutch IP translator