A political website that has an extensive message-board system, HuffingtonPost, has a blog and message board regarding the vampire phenomenon. There has been very little activity, and if you are interested, your opinions would be, IMO, a welcome breath of fresh air.
Here's a tiny url for the blog/folder: http://tinyurl.com/m46ct5
You have to register, but it's really easy. If there is enough interest in vampire movies/books, they will have more blogs/messageboards about it. I would like to see that happen because our world is such a cultural phenomenon that everyone assumes is only for ditzy pre-teens and teens and, therefore, discredits it.
The majority of the website is for political issues, but the Style, Entertainment and Comedy sections are pretty fun.