What's in a newsletter to Bridal party?

simple things - the wedding date, the rehersal dinner date and place, the MOH's phone number and address, possible the other BM's information, any important information about the day of the wedding, the shower, all of that sort of stuff.
it depends on what point you are at in the wedding planning - i guess it's just to updateeveryone in the BP and make sure they're all on the same page.

That is a good idea. I found this site for youBridesmaid update