Here’s an interesting tip from Steve Outing in Poynter’s E-Media Tidbits: put an indicator in your e-mail signature whether your e-mail is private or “bloggable.” With most people owning blogs nowadays, Outing says “it’s worthwhile to make it clear when something you’ve sent in an e-mail is meant to be private.”
I tweaked my signature to be tagged private by default in case I forget to put an x in the appropriate box while discussing an embarrassing topic with someone through e-mail.
This e-mail is: [ ] bloggable [ ] ask first [x] private
(edited: changed blogable to bloggable. Outing, however, spells it as “blogable.”