“Group” is getting seriously overloaded in this context; shared circles will clearly be useful, but tbd which workspace (asynchronous collaboration shared space) model Google will use for Google+, with options already including Google Groups and Google Sites (both part of Google Apps)
"Fridge will be shutting down, but the core tenets will stay on in Google+," Chang said today. He said two people from the four-member Fridge team will be moving to Mountain View, Calif., to join the Google+ team.
Groups for Google+ have actually been a part of the plan for a while, said a person familiar with Google's product development. Internally at least, groups for Google+ have been known as "shared circles."