You can test your WPM here. I average between 84 to 92 words per minute, and believe it or not, I'm more than 80 percent accurate. The Huckleberry Finn test was the hardest for me; I kept correcting Mark Twain's grammar and Huck's speech, and that's no good. I did the best on the competitive analysis piece and fell apart on the tiger thing again, mostly because I kept spelling words like "the" wrong and inserting random punctuation.
But still, much fun. I think one can type much faster when it's all in your head, versus copying something out, because there's that whole brain-to-fingers lag time.