PLEASE SIGN THE PETITION TO KEEP THE SHOW GOING
Here the petition the fans are putting together to keep the show going, please sign it so that we can keep Young Justice on the air.
PLEASE SIGN http://goo.gl/m6AUo PLEASE SIGN
...in all likelihood the network will ignore a petition but at least you can say you tried SOMETHING to keep it going.
Another way you can help is by pre-ordering the Young Justice video game, (no one said you had to buy it, just pre-order) this should help push the idea that the show is generating more fans than CN had originally anticipated.