Overheard lists out the most recent Twitter posts ("tweets") related to this company. Anyone, employee or customer, can convert a tweet into a community topic. Overheard notifies the original Twitter poster of the discussion started in response to their issue.
RT @calebrown: every time someone sends me a link shortened with StumbleUpon I vomit everywhere and stab a hobo's dog on my way home from work. plz stop it