Mother/N.Y. has hired four new creatives. Susan Ebling Corbo, formerly of Arnold in Boston, joins as a senior
creative. Helen O'Neil, formerly of TBWA/Chiat/Day/L.A., will take the position of art producer. Joining as a
strategist, Rob Thorsen was an account director at BBH/N.Y., while Michael Rose, formerly of Brouillard
Communications, joins as a mother. ... New York-based interactive agency Firstborn Media has announced the
opening of a new office in Los Angeles, to be headed by executive producer Jeremy Berg.