The next 3 links have information about modern square dancing:

     1) What is Modern American square Dancing

     2) Try Square Dancing

     3) 70th National Square Dance Convention Highlights

 

The following are links to  other organizational groups: 

     Welcome to CO-OP

     NESRDC   -  New England Square and Round Dance Convention

 

The following link(s) are a good source for helping to learn some of the square dance calls. 

(The sites have basic/mainstream/plus...and higher level calls.  GOOD DANCING!)

     Video Square Dance Lessons Online 

     TAMINATIONS (automated breakdown of square dance calls)