Retailers are trying to keep up with the demand for the Nintendo Wii, which gets kids off the sofa.

Nintendo, the makers of the Wii, said "we're doing everything possible" to keep up with high demand. Nintendo has made an extra 3.5 million consoles for Christmas.

Specialized websites like are here to help shoppers locate and buy Wii, which has been in short supply recently.

Is the Wii on your Christmas list? Try shopping at www.buy-wii.com. They have all the Wii consoles such as Wii Gladiator Kit and more!

Nintendo stated that not all who want a Wii is guaranteed a Wii this Christmas.

"The demand for Wii hardware has been higher than Nintendo could ever have anticipated," said a spokeswoman.

Because of the demand for the Wii, some retailers are selling it for nearly double the usual retail price.