SPOILER MANIA!EDIT II: Well, if you don't want to read Harry Potter and the Half-Blood Prince spoilers, maybe you'd enjoy these Scientology spoilers instead, with Xenu and the nuclear volcanoes and the space DC-8s and all.
EDIT III: Oh, dear. I thought page 606 was bad, but page 596 and page 597 are even more spoileriffic (and don't even hold your mouse over the URL if ya don't want to know). He also has this page, with another "do not even look at what the link is called" URL.
EDIT: Here's a LiveJournal community, "Spoil Me HBP", for everyone who wants to go into Half-Blood Prince knowing, in advance, exactly what to expect (or for those of us who don't have enough patience to actually read the bloody things and would rather just read a list of spoilers now and wait to see the movie in a couple of years).
ORIGINAL POST: Here's the Harry Potter version of my all-time favourite Cowboy Bebop page.
Though I should point out to anyone who has seen the forbidden page 606 from Harry Potter and the Half-Blood Prince that, while there seems to be a general consensus that it's real, from the third of the next page we can see it would appear that all is not as it appears to be.