We are working on piloting group references this quarter. After attending the CMA Summit in NY we talked to a couple of people who do this and got some great info. Happy to share what we learned and what we're doing.
We're getting ready to do a "re-launch" to drive greater adoption and make sure all of our new sales team members are aware of it and know how to use it. Happy to answer any question you may have. We use ReferenceEdge if that helps at all. ๐