Historically, that's not a community that could work very well together. Now, companies can enable these groups. Knowledge markets are working at a lot of places, but they're tough to do well. At some places, the track record is mixed. In some cases, these groups get treated like an external virus.
Antibodies surround it and cut it off until it dies.
In other cases, there's a tremendous passion among people who see the potential to create something of value, but either they don't have enough of a picture to commercialize it, or some of it is answers looking for a question. Ruthless attention to market realities, though, is one way to fail at this. Companies aren't using these right unless they're willing to let them fail now and then. For example, if you're only supporting innovation markets that prove there's a real market out there for what teams are trying to create. These teams have to be allowed to fail and to have maximum creative room and support, regardless.