Gaunilo's asked about my theories on Snape now that I've finished HBP - I am thrilled at the opportunity to geek out yet again. But before I do, I just had to direct your attention to what are probably the funniest cases of fan outrage I have ever witnessed. Premise: (and I don't really consider this a spoiler, but read on at your own risk) there have been hints at romantic relationships throughout the HP books. Apparently, some "shippers" (the fan word for those obsessed with relationships) have actually believed, up until bk 6, that Harry and Hermione would get together. They call themselves "Harmonians" (get it, Harry + Hermione) vs. the (more sane) Herons (Hermione + Ron shippers).
In recent news, JKR gave an interview with the webmasters of Mugglenet and The Leaky Cauldron. During this interview, all parties involved had a good laugh at the sadly mistaken Harmonians. Emerson, the Mugglenet moderator, used the word "delusional." Harmionian reaction has been raging on ever since. You MUST read this, which Emerson calls his "Wall of Shame" - excerpts of fan reaction as clipped from the forums. No, I mean you MUST read it, and ALL the way down. And MAKE SURE you link to the petition.
Incidentally, I have fallen in love with a new net abbreviation: IDGRA. As in: I Don't Give a Rat's Ass.