Doctor Who is up for a People's Chocie Award in the States in the Best Sci-Fi category. It's up against Battlestar Galactica and Stargate: Atlantis.
So, to fly the flag for a great sci-fi TV series - as well as it being a British rarity of being nominated - go over to the People's Choice Awards site and cast your votes!
It doesn't seem to matter where in the world you are as I just voted without any problems at all.
People's Choice Awards Website