Duct Tape Marketing Blog had a great piece on creating a position called the Chief Conversation Officer. It actually fits the position I would tell you to create if you were working with a Duct Tape Marketing Coach . In the broad sense the duties of this position should include:
Content – this one is pretty simple – full fledged blogger, article publisher, white paper creator and education based marketing materials and webinar creator.
Context – this one is a little trickier, but your conversation officer should employ RSS technology to aggregate and filter the content and conversations going on in every online and offline corner and package it to make it more useful for your organization and your prospects.
Connection – your CCO should be in charge of developing ways to include your customers and partners in the building of your business for mutual benefit. Your CCO should be in charge of the conversations your customers are having after they buy, as they decide to buy more and in the process of becoming a referral source.
Community your conversations must eventually come together as community. You must facilitate conversation among your prospects and customers, introduce partners and find ways to co-create value. Intentionally hosting the conversation your customers are having with each other is a must.
The key to the success of this person is the access to a marketing 
professional, who has received extensive training in the application of the Duct Tape Marketing system. Your part-time marketing professional will provide you with the advice you need, when you need it. Also, participating in learning the Ultimate Marketing System is a no-brainer for this person to become effective.
Now, who in your organization is going to step up for this position?