register.com

—>Inside, email addresses, phone numbers, and addresses for over 100 different companies to inject your customer service complaints into their corporate executive offices, and get it well on the way to success.  More »

We're not totally convinced there isn't a catch of some sort (they do require you to enter a credit card as part of the validation process), but Register.com appears to be offering free domain name registrations. [Register.com]  More »