Sustain: the alliance for better food and farming.
Website here.
This non-profit organisation based in the UK was formed in 1999, and works towards ensuring farming develops in a sustainable way, profiting both growers and consumers.
LETS - the UK Local Exchange Trading System.
Website here.
This is a grassroots community movement that seeks to match people and skills to needs in the local area. Everyone has something to offer - from hairdressing to dog walking - and gains credits that can be exchanged for a service you need.
Freecycle.
Website here.
This is a global initiative which is working towards reducing waste and landfill. You advertise your unwanted goods, and someone will come and collect them if they want them! Run and maintained by volunteers, and free to join in.
The Soil Association.
Website here.
This is the UK's leading charity promoting sustainable and organic farming.