Just wanted to let you know, that since previous Mizuki Nana 'SEVEN' forum was shut down a couple of weeks ago, another one has risen up to take its place as the spiritual successor.
The forum is still unnamed-- but they're open for new members. If you like Nana and her music, and is following her seiyuu career, come join! I think there are some Fate/Nanoha-related fans there as well.
Here's the link:
Nana Mizuki International Forum
Best singer ever! Pray and the Heaven in the Hell are amazing!