Swamp Thing #40 - final issue, going to miss the book. Sad it's numbers dropped to that point. That's one less DC book I'll be reading. They are pushing me into just about all trades.
I was already reading the GL line that way so the news of that families titles being cancelled doesn't affect my monthly buying.
I didn't know that and then I found this:
In addition to "Batwoman," "Swamp Thing" and a trio of "Green Lantern" series, the following final issues will ship in March: "Infinity Man and the Forever People" #9, "Secret Origins," #11, "Star Spangled War Stories Featuring G.I. Zombie" #8, "Trinity of Sin" #6, "Worlds' Finest" #32, "Arkham Manor" #6, "Aquaman and the Others" #11, "Klarion" #6 and "Injustice: Gods Among Us Year Three" #12 (the only non-mainstream DC Universe series ending in March).
from: http://www.comicbookresources.com/?page=article&id=57801