It's no secret.
Freemasonry is a club or fraternity dedicated to the good of people everywhere... which isn't nearly as hokey as it sounds.
If you'd like information regarding the masons, I urge you to check out this website. You will find a lot of misinformation on the web, so take anything you read with a grain of salt.
http://www.torontomasons.ca/flash_content/flash_content.html
Getting a great response about the coin! If you are interested be sure to leave a post here so that I can use this as a pre-ordering gauge.
CHEERS!