NEW YORK: IPG's Universal McCann media agency introduced a social media division this week, Rally@UM, highlighting the continuing battle among marketing disciplines for control in social media.

Rally will be led by Heidi Browning, EVP and global digital officer for UM. It combines a "boutique social media experience" with the agency's  current offerings, she added.

"There is so much fragmentation in the social media space and everybody is kind of grabbing at it and gravitating to it for ...