Two thoughts for the day:
Firstly, I am sure there are several Twits on the Twitter staff dedicated to monitoring and managing corporate communications, however a formal suggestion page would provide great developmental appraisals (apologies if there is one already), potential recruitment identification, and idea brainstorming separate from payroll.
Secondly, for protected accounts provide another ‘tweet action’, right there by re-tweet, reply et. “Make Public”. Some Tweets everyone can see and RT, other things… should remain protected. This helps keep privacy while encouraging “instantly connecting people everywhere to [more of] what is most meaningful to them”.