The U.S. Constitution is certainly the most influential legal document in existence. Since its creation over two hundred years ago, more than one hundred countries around the world have used it as a model for their own.
Have fun and learn about America’s greatest document!
Test your Constitutional knowledge by taking these quizzes
What is the Bill of Rights?
2012 U.S. Constitution Survey Results & Common Misconceptions about the Constitution
U.S. Constitution Activities for all ages
FREE Constitution App for Android
FREE Constitution App for iPhone
FREE Constitution App for iPad
I can't stand it anymore! What is becoming of our country, our basic liberties? 
GetOffYourButts.com 
There are 2 constitutions. The original organic constitution for America vs. the constitution of the for-profit U.S. Inc.
http://sitsshow.blogspot.com/2014/02/two-constitutions-in-united-states-1st.html