I'm not sure about the anime. Was a 3rd season ever confirmed?
The manga is still going and the last release was on 1/13/13 so it still seems to be active. If you haven't seen an update its probably because you're using an online reader that is more respectful of the scanlators wishes than most. A-team who is scanlating it doesn't want their releases on online readers... which doesn't mean they aren't there. If you want to download it from A-team here's the site. If you want to read online google is your friend.