Big big spoiler so keep out if you haven't finished HBP!
I read an interesting, rather good, theory on HPforums.com, and thought it worth linking. It considers that Dumbledore faked his death. I actually thought he faked his death too, when I first read that Snape killed him, but in the end I kind of gave up on him. Then I bumped into this theory, and I admit it's pretty good.
If you want to read it, go to: http://www.hpforums.com/forum/index.php?showtopic=32605
There you are! Have fun reading it, and post your thoughts here. HPForums also has good discussions, so if you're interested, you can register there as well.
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