Polarium Puzzle Archive - An archive of custom puzzles, with codes and images. - http://polarium.strategyplanet.gamespy.com/
GameSpy DS - 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 me - http://gba.gamespy.com/nintendo-ds/one-line-puzzle/605192p1.html
IGN DS - Contains news, previews, screenshots, and a message board. - http://ds.ign.com/objects/707/707314.html
GameFAQs - Contains release data and a message board. - http://www.gamefaqs.com/portable/ds/data/925392.html