Keywords: Pyramid8BallFull.svg A sample pyramid scheme using the 8 ball model Blue Winners; Red Losers Highlighted in yellow is the 8-ball model available at Image Pyramid8Ball svg en Image Pyramid8BallFull png 2007-03-28 Traced by User Stannered PD original en Image Pyramid8BallFull png en English Wikipedia MagicMoose Created with Inkscape SVG economics Pyramid scheme Network topology Binary trees |