The Beelzebub television anime series will end next Sunday, March 25, on its 60th episode. The anime magazines had revealed on March 10 that the anime is ending, and the official Twitter account for the anime corroborates this. However, Ryūhei Tamura's original manga is still continuing, and the last anime episode is titled "Sayonara wa Iimasen" ("We Don't Say Farewell").
It might just as well, because it got dangerously close to the manga anyway. If it continued we would just get a filler galore and bad ones at that, as it's produced by Studio Pierrot of Naruto and Bleach fame.
Still, I'd rather see it go the seasonal route than end completely. The manga is far from bad, so the anime could have been good if done right.