Here you will find a whole load of organisations doing the right things for the right reasons.

CAPITAL GROWTH
www.capitalgrowth.org
The Capital Growth campaign will offer practical and  support to communities around London, helping people get access to land and create successful food growing spaces.

COMMUNITY ORCHARDS
http://www.england-in-particular.info/orchards/o-comm1.html
A resource on Community Orchards.

Guerilla Gardening
http://www.guerrillagardening.org/
The official original blog for the Guerilla Gardening movement.

Grow your own drugs
http://www.timesonline.co.uk/tol/life_and_style/health/features/article5817587.ece
Article from the times on herbalism replacing chemical drugs.

FALLEN FRUIT
http://fallenfruit.org/
Artist group mapping the fruit trees in LA