Tools
Universal whois
Use this universal whois script to check availability of a domain name and get whois information.Nearly all the current gTLDs and ccTLDs are supported.
Useful links
DomainTools - monitor domain names and more
http://www.domaintools.com
www.DNSstuff.com - DNS checks and many useful network tools
www.DNSstuff.com
Partners
Sedo is the leading marketplace for buying and selling domain names and websites
Afternic - Buy and Sell Domain Names
Namedrive is an advanced Domain Parking service that will enable you to monetize your domains through its parking service to generate revenue.