Wow...I thought the list would be much longer than that. I feel bad for not participating now. /-:
Scary said it was only two less than last year, but about half the people. I'm going to try to play it up better next year, maybe get some higher profile people involved. My own post about ArenaNet got reTweeted by the official GW2 feed and received 1200 hits as of this writing.
Good for them and good for you! Well, I will commit myself for next year and add whatever oomph I can to it.