Here are some great mathematics pages for you to check out:

• PopMathematics
  
• The Geometry Junkyard
  
• Wolfram's graphics and animations
  
• World of Escher
  
• The KnotPlot Site
  
• Totally Tessellated
  
• Paul Bourke's Geometry Page
  
• Plus, an internet magazine which aims to introduce readers to the beauty and the practical applications of mathematics.
• The National Council of Teachers of Mathematics
• The Mathematical Association of America

Look at my Mathematics Quilt.