Upgraded it some more and added an IP Whois tool there as well now.
The IP Whois tool is still in a testing phase so it's not 100% yet, but it work's for most IP's
and should be able to find out which one of the 7 major IP whois databases it should use (RIPE, ARIN, APNIC etc.)
Both Tools uses AJAX to display the results on the same page now.
It's also possible to link to directly to it from other tools/pages and get a specific IP address displayed directly in the input box:
(if you're linking to the page from other tools and don't want to copy'n paste the IP)
Like this:
http://www.spyber.com/ip-lookup.php?ip=66.249.65.82