HP: HBP
I owe these to probably countless other sites that I've surfed since finishing HBP, but here goes:
Horcruxes:
The potion in the bowl that dumbledore drank? (a la lilycascade)
Harry.
Harry's scar.
The locket that Harry finds might be a horcrux for dumbledore? 'Cept he would have to kill to make that.
Harry's potion book.
Snape:
Not evil, just playing one on TV. But seriously, not evil, but fulfilling an oath made long before to Dumbledore. Also, Dumbledore isn't really dead. I've watched too many TV season finales to think that anyone that dies in a cliffhanger is actually dead and beyond retrieval. Besides, they're wizards. Gah.
Okay, that's all I have right now.
Comments? Other theories?