ACE - Association for the Conservation of Energy

EE - Energy Efficient Homes

AECB - Association for Environment Conscious Building

ATA - Alternative Technology Association

CAT - Centre for Alternative Technology

ebuild - UK's self build web site with information for self builders

Architecture resources - Directory of architecture related websites and discussion groups.

PHI - The Passivhaus Institute (homepage in German language)

LEED - Leadership in Energy and Environmental Design