A great start to a Buy Fresh, Buy Local directory is the Local Food Guide that was started by Earlham College student Ben Hastil, and is now being updated and maintained by ProgressiveWayneCounty.org.  The guide has a detailed listing of where to find various kinds of local food, how to contact growers, and thoughts on what it means to get our food locally.  The guide is a work in progress, but it can certainly serve as a jumping off point for more extensive branding efforts.