Alientiles.com
Alien tiles official web page, the universe's most challenging and fun puzzle game
http://www.alientiles.com/
Archimedes Lab Puzzels
Smart games for puzzle fans, teachers, trainers and facilitators: enjoy making and solving puzzles - optical illusions - tessellations - geometric dissections - tangrams - mazes
http://www.archimedes-lab.org/indexB.html
Interactieve Java Spelletjes
Interactieve Java Spelletjes
http://www.cut-the-knot.com/
Pentomino Puzzles
Pentomino Puzzles
http://www.pentomino.be.tf/
Rubik Puzzel (java)
Rubik Puzzel (java)
http://www.javaonthebrain.com/java/rubik/
The Rec.puzzles Archives
The Rec.puzzles Archives
http://rec-puzzles.org