GameSpy DS
gba.gamespy.com
Review, by Phil Theobald: "Granted, the concept of staring at a screen full of black and white squares for minutes on end looking for the correct line to draw may not sound like the most exciting game out there, but for those who appreciate a good mental challenge, it's a treat." [Score: 4 out of 5]
IGN DS
ds.ign.com
Contains news, previews, screenshots, and a message board.
GameSpot
gamespot.com
Includes information, previews, screenshots, and box art.
GameFAQs
gamefaqs.com
Contains release data and a message board.
Polarium Puzzle Archive
polarium.strategyplanet.gamespy.com
An archive of custom puzzles, with codes and images.