I once read a post where mod Valerie mentioned about offline promoting. I have not personally tried flyers but let me tell you one thing, don't add your url as it is. With the help of some url Shortener shorten it and then print it in your flyer. If you print www.clixsense.com/?xxxxxxx people only type www.clixsense.com and they will sign-up directly
Let's wait and see what other member's think about your idea