http://www.nameboy.com
2. DomainSearch
http://www.domainsearch.com
3. Whois.Net
http://www.whois.net
4. Whoix
http://www.whoix.com
5. Qwho.com
http://www.qwho.com
6. my monitor
http://www.mymonitor.com
7. BetterWhois
http://www.betterwhois.com
8. Namedroppers.com
http://www.namedroppers.com
9. DomainSurfer
http://www.domainsurfer.com
10. AllWhois
http://www.allwhois.com