If you remember my earlier column detailing why I started reading the Harry Potter series this spring (21 May, "Reading Harry Potter"), here's another example of how aspects of the Harry Potter series has crept into our vocabulary (as well as a couple of other dreadful folks as well).
Here is the quote from this article:
Given the standing of these men at this moment, it was a little like watching Lord Voldemort trying to defend himself with character testimonies from Sauron of Mordor and the White Witch from Narnia.
Now that I've finished books 1-6, I know exactly what the author is talking about and can smile knowingly.
As, as a marker for history to judge, the title of that article is "The Democrats can't lose. Except in two ways." Hmm, let's see if this article is available during the first week of November 2008.