Domain Registration Companies,

DirectNIC.com - $15/yr Registration (Alright Priced - Excellent Control Panel)

GoDaddy.com - $8.95/yr Registration (Under Priced - Low End Control Panel)

Register.com - $35/yr Registration (Over Priced - Terrible Control Panel)

NetworkSolutions.com - $35/yr Registration (Over Priced - Terrible Service)

Personally - CrazyHosting uses DirectNIC.com for all their domain registration needs. We find all the tools we would ever need. If it is from updating your contact info to creating nameservers, DirectNIC will be there for you.