I know of quite a few Fuji-based blogs but, honestly, few are really very intersting...at least to me.
Exceptions that come to mind include Adam Bonn's X-Pro blog. It's very good info on the Fuji X-Pro1 especially. Kevin Mullen's F16.Click site is sometimes interesting as is Olaf Sztaba's Olafphoto site.
I'm probably forgetting some but you can get a digest of Fuji sites by using Flipboard's various Fuji sites.