Wow, I really like how World of Warcraft supports its player community efforts. If you look at the front of the http://www.worldofwarcraft.com website you'll see information about contests and downloads, and if you poke around further on other sites or searching through Google, you'll find things like the World of Warcraft Census+ add-on and the statistics that its already gleaned.
Just for fun, here's my Zul'jin player profile, on the same site as the general Census.
Eventually my characters in other Realms will get to lvl 10 and be included in the Census data and I'll post them here.