The Green Thumb Links

Denver Urban Gardens - http://www.dug.org/
A community of urban gardens.

Interior Landscaping - UK - http://www.plantscapes-officeplants.co.uk/
The Professional Interior Landscaping Company in the UK and Ireland.

Healthy Green at Work - http://www.healthygreenatwork.org/
Healthy Plants in the Workplace is an information campaign disseminating information about the benefits to health created by having plants in the workplace.

Plants for People - http://www.plants-for-people.org/
Plants for People is an international initiative, spreading knowledge of the benefit of plants in a working environment.