Foodtree; free social marketing tool (web & mobile) for food producers.
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I've obviously a little biased but would be remiss not to suggest adding Foodtree to the list of tools for farmers and food business owners; we've got a free web and mobile app for sharing your food with food lovers. It's a simple way to share "where to buy" and "where we source from" information with food consumers directly, on any mobile phone. We also built a free iPhone app specifically for sharing photos of food and tagging those photos with Where Found and Where From information.