Geometry Links
Making Cubes (Nets)
Point of the View
Pattern Blocks
Optical Illusions
Siji ("Cracker Barrell" Game!)
Tetris
Tangrams 1
Tangrams 2 (Click the BEGIN button on site)
Tangrams 3
Tangrams 4
Tons of Tangram Links
MORE Tangram Links
TONS of Geometry Games (including GORILLA!)