Web links
Passivhaus
AECB CarbonLite - 
Offers Passivhaus training in the UK through its CarbonLite Programme
Green Building Store - Passivhaus products, training & services
Low energy buildings database - a repository of 
UK low-energy building information created to help
inform the planning and development of low energy new build and
refurbishment projects
Passivhaus discussion forum - part of BUILDING network
Passivhaus Institut - German organisation which disseminates information and training on Passivhaus design.
Passivhaus myths dispelled - Wolfgang Feist addresses the common myths regarding Passivhaus
Passivhaus Trust - The UK Passive House organisation
Green building
AECB - the sustainable building association (formerly Association for Environment Conscious Building) UK association that seeks to encourage greater environmental awareness within the UK construction industry.
Alternative Technology Centre, Hebden Bridge
BioRegional – organization behind the BedZed project and One Planet Living
BuildingGreen.com US site for practitioners of sustainable design.
Centre for Alternative Technology Visitor centre, information service & courses
CIRIA, The Construction Industry Environmental Forum
Ecos Trust - information, courses and conferences on sustainable building & design
Genesis Centre – UK sustainable construction resource centre
Green Building Council - UK organisation campaigning for a sustainable built environment
Green Building Information Centre (GBIC) – Canadian site that disseminates information about energy and environmental issues in the building sector
Green Building Press – UK publishers of Newbuilder online, the Green Building Bible and Green Building Magazine
Green Home Building- US site with a wide range of information about sustainable architecture and natural building.
Green Register - Training and events for construction professionals
GreenSpec- an Internet-based resource including downloadable NBS compatible specification preliminaries, work sections and clauses as well as searchable information about sustainable building products
NBS Green Construction – news abstracts on green building from UK/Irish sources
Scottish Ecological Design Association (SEDA) - promotes ecological design in Scotland
Sust, The Lighthouse on Sustainability, Scottish based sustainable design portal including database of eco materials, products and services.
Sustainable Homes promotes awareness of sustainable development issues and good practice, and encourages housing associations to adopt sustainable policies and practices.
Sustainability Works is for anyone interested in adopting a sustainable approach to housing development and regeneration. They may include housing associations local authorities, consultants, contractors and developers.
Energy efficiency & renewables
British Wind Energy Association - information, statistics, campaigning and images of wind, wave and tidal energy
Centre for Sustainable Energy (CSE) - advisory service on energy efficiency & renewable energy based at the CREATE Centre in Bristol.
Energy Saving Trust - key source of free information, publications, training, advice and consultancy on the efficient use of energy in building.
National Energy Foundation, development of energy policy, establishing infrastructure for the UK's sustainable energy sector and by providing consultancy services.
Campaign groups
Ethical Consumer- leading alternative consumer organisation. Researches the social and environmental records of companies.
Forest Stewardship Council (FSC) - promotes responsible management of the world's forests
Friends of the Earth - environmental NGO campaigning against climate change
Greenpeace - environmental NGO campaigning against climate change
Stop Climate Chaos - coalition of environment & development organisations campaigning against climate change
WWF -One mllion sustainable homes campaign
Other environmental/ethical products
Ethical Junction -directory of ethical companies & products
Real Green Retail Group - a collective of UK businesses trading in ethical, fair trade and green (environmentally friendly) goods and services.