Newt Gingrich's official website is this one:  http://www.newt.org/.

However, someone at the Newt campaign failed to take ownership of all the Newt-related domains. It seems that someone has taken ownership of the www.newtgingrich.com domain and is redirecting visits to negative press articles or websites like Fannie/Freddie Mae or Tiffany's. (These sites are related to some of Newt's political baggage).  Indeed, every time you visit the site, you'r redirected somewhere else. Simply looking at the header response information courtesy FireFox, you see the redirect (click to BIGGIFY):

Again, we see how 2012 will be the first major election year where hacking will be a big, huge factor. Just because this is Newt does not make it a Republican problem only.  All current and future Karl Roves or James Carvilles will need to have a "war room" response for hacking built into the campaign contingency plans.  But the more astute, well-funded campaign managers will bring in a good-quality security team.