Most of the Internet Power users are aware of Internic’s WhoIs service. Given a domain name (Say venkatarangan.com) WhoIs tells you details about the owner and name server details. But Internic’s WhoIs is limited to gTLD (Global Top Level Domains like .COM, .NET, .ORG) and you are left on your own if you want to find details about ccTLD (Country Code TLDs) like .co.in or .co.uk.
This has changed now with the launch of the Universal WhoIs service that works not only with gTLDs but also with 246 ccTLD. Check it out, by giving say vishwak.co.in.