[NF] Best Practices for collaborative sharing of information

The Corporate gig has tasked me with looking into a way for several similar organizations to communicate and share with each other things are the related to the success of all of them; a collaborative sharing of ideas, best practices, information, etc. to help the (healthcare) product as a whole.

I have advised against a listserve as I don't feel that's friendly enough for sharing materials/files/stories. I'm believing a forum would be best.

Would appreciate your thoughts.

Thanks, --Mike