Allwhois.com - listing of whois search engines for different countries. Allows you to check domain name availability in any country.
BetterWhois.com - meta search all domain registrars to find out who owns and administers a given Internet domain, and with what registrar the domain name is registered.
DomainGames - monitors daily dropped domains and new domains.
Internet Whois Server - allows WHOIS queries to find out who owns and administers an Internet domain.
WebMagic Whois Plus - search engine for Internic DNS server and domain name registration information covering over 158 top level domains from around the world.
