Harry Potter and the Half-Blood Prince

Earlier this week I read Harry Potter and the Half-Blood Prince (the most recent one). I'd been putting it off, because I'd been very disappointed with Order of the Phoenix (not much seemed to happen until the last couple of chapters), and had been told Half-Blood Prince was more of the same. But I quite liked this one.

There's an article here at Yahoo! News about the people who reckon Harry Potter encourages children to get involved in occult and pagan stuff.
And there's a pretty brief article here at Relevant, about Christian stuff in Harry Potter.