Originally posted by devane92:
I think there's two sets of The Others who are, like you said, 'good' and 'bad'. I just don't know which group would be good or bad..

But there's one line that makes me think about there being two groups of Others. Goodwin said it in '...48 days', just after he realizes that Ana's found out about him. It's:
'Nathan was not a good person. That's why he wasn't on the list.'I just don't know what to make of it. They could be killing off all the bad ones, which would make them good. But then I think about the kids - why did they take them?!