"BigBarn was set up by a 5th generation farmer who noticed the onions he sold to a middle man for £130/ton on a Tesco shelf for the equivalent of £850/ton. This happened every year and is the same for most food products, including milk.
Twelve years later 7,000 local food outlets have an icon on BigBarn’s local food map with more signing up every day. 460 have set up online shops in an Amazon-style online MarketPlace and 90 other websites have the map and MarketPlace on their websites to help more people find local food and build a new local food industry." (http://stirtoaction.com/big-barn-local-food-goes-virtual-2/)