I use Goodreads.com to keep track of books and hopefully ward people away from crappy science books.  Their landing page lists the top and bottom rated books and I thought it neat.

Twilight’s on both.  I suppose it’s rated by the number of 5 star reviews and 1 star reviews rather than the average.

On my landing page it lists my rank in some trivia game in which I’ve apparently participated.

I suppose there are six non-persons who are ahead of me allowing me to be in a place lower than the number of participants.