Adweek 25: hellos and goodbyes, 11/16/10

Mccann_ny

Over on Twitter, we maintain an evolving list called the Adweek 25, a group that's meant to represent the most interesting advertising and marketing voices on Twitter. Each week, we make additions and cuts to the list. This week, we've got one retirement and one more agency Twitter account to add. Check out the update here.