Ninja Gaiden Dragon Sword

GameSpot
News, previews, images, videos, and a forum.
http://www.gamespot.com/ds/action/ninjagaidendragonsword/

GameSpy
Previews, news, interviews, screenshots, and a movie.
http://ds.gamespy.com/nintendo-ds/team-ninja-project-/

GameStats
Videos, screenshots, article links, and a message board.
http://www.gamestats.com/objects/686/686990/

IGN
Videos, screenshots, previews, news, and a message board.
http://ds.ign.com/objects/686/686990.html

Wikipedia
Article describing the gameplay, plot, and development.
http://en.wikipedia.org/wiki/Ninja_Gaiden_Dragon_Sword

1UP
Preview, by James Mielke: "Slated for a 2007 release, Dragon Sword should rest high atop almost any Nintendo DS owner's wishlist for the year..." <small>(May 11, 2007)</small>
http://www.1up.com/do/previewPage?cId=3159473