The above link displays a screenshot of a post on the DC Nation face book page - a post from someone who rang one of the higher-ups at CN and was told that "if the fans want to turn things around for YJ, we have two months to do so and we need THOUSANDS of more viewers". So all is not lost yet, keep watching and please encourage friends to watch the show, because a noticeable increase in viewers will save it. It's likely that by 'two months', the director means the seven weeks left of the show's run. So make sure you do your bit to try and increase ratings for each of those 7 episodes!
Additionally, please check out the other blog I posted on Young Justice Wiki today, which concerns the likelihood of reviving the show for a mini-series to bring the total episode count for Young Justice up to 52 (with enough concern and support... and persistence where Cartoon Network is concerned).
Please remain civil. You should not harass other users or their views.