IGN: The Witcher
News, previews, screenshots, and videos.
http://pc.ign.com/objects/682/682220.html

FilePlanet
Provides movies and trailers.
http://www.fileplanet.com/98350/0/section/The-Witcher

GameSpot
News, previews, images, videos, links, and a forum.
http://www.gamespot.com/pc/rpg/thewitcher/

GameZone
Preview, by Michael Lafferty: "The demonstration of the game revealed a rich world and immersive game that will definitely challenge and definitely pull gamers into the game’s deep story."
http://pc.gamezone.com/gzreviews/p25447.htm

GameFAQs
Release data, and a message board.
http://www.gamefaqs.com/computer/doswin/data/915112.html