Social Media (sharing) for business is networking.
Whether you share on big brand social sites like Facebook, Twitter, or LinkedIn or you do it privately with other like-minded companies the results is similar.
Granted, with big brand social sites your return is purely about traffic which doesnt directed aid to ranking enhancements but the principle remains the same. MissionOp will help you setup these resources and educate you into their best practices but it is up to you to use them.
But networking does not need to end there that is merely the start point. Networking with direct or indirect competitors offers numerous advanced opportunities. Whether working with others in a vertical market or expanding outward across horizontal markets; sharing can also be about cost sharing or revenue sharing.