I Googled and found these websites:
http://www.scrap-therapy.com/
http://tinyurl.com/7fzd2p
http://www.patchesplacequiltshop.com/id13.html
Looks like it would be fun, but also looks like it is a way to sell people on a "system" that includes buying patterns made specifically for the size squares you cut. I think you are paying for participation in a group and for the patterns. Could be a good deal for someone with lots of fabric leftovers that need to get used up.