Seriously though, my favorite episode of the series was the one where we learned that Vincent the dog is God, because dog is God spelled backwards. I feel sort of guilty revealing such an important spoiler to someone who hasn't watched the whole series. But he did ask.
I don’t mind the information at all. I have visited several sites which feature a description of the episodes, characters, etc.
From what I have gathered, the jest is that the characters I asked about all died in the plane crash.
I don’t know about the Others (where they came from, but I’m assuming they’re like the rest of the castaways) or the Man in Black vs. Jacob. I may find out; my family may buy the entire series.