The campaign website for Newt Gingrich isn't NewtGingrich.com. It's Newt.org. But if he, for whatever reason, wants his full name reflected in the URL, he can.
Progressive organization American Bridge 21st Century, which owns NewtGingrich.com, is selling the domain on Craigslist. The URL currently rerouts visitors to Tiffany.com, the website for the jewelery company.