Google+ could be Google's latest enterprise weapon

"The Circles feature in Google+ would enable people to more easily communicate with and share documents with different work groups or project teams, for instance. And the platform's Hangouts feature could allow users to hold video conferences with multiple geographically-dispersed co-workers."

http://www.computerworld.com/s/article/9218021/Google_could_be_Google_s_latest_enterprise_weapon