For quite a bit of info on Bronica (plus other info)

http://www.myphotoweb.com/

This is NOT MY Site but is Copyright © E. van der Aa 2011, All rights reserved Myphotoweb.com

Has Bronica history, info on camera models, and very good section on Bronica lenses. Does NOT have Manuals although has this note:

Because NOBODY was willing to contribute

any documentation, I have taken the manuals offline
Thank you for your tremendous support!

Still a prety good site just the same.