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.