ChessWise's Free Chess Lessons Online Chess Training (Popularity: )

Audio lectures by Grandmasters, lessons, and numerous sponsored activities highlight this chess-learning site.
Category: Games\Video Games\Recreation\Board Games

Chess Academy of Denver (Popularity: )

Run by NM Todd Bardwick, the Academy offers chess instruction, classes, and the annual Rocky Mountain Chess Camps in Denver, Colorado.
Category: Games\Board Games\Abstract\Battle Games

Chess Mates (Popularity: )

[Commercial - $19] Teaches rules, elementary tactics, and provides graduated opponent to ages 9+ with animation, digitized voice.
Category: Games\Video Games\Recreation\Board Games

Essentia (Popularity: )

[Commercial-$20] 1 million chess games on CD-ROM, with included database browser, various freeware Mac chess software.
Category: Games\Video Games\Recreation\Board Games