Architecture
About Architecture - http://architecture.about.com/od/organizations/Architecture_Organizations.htm
Use this directory to find organizations, associations and clubs for architects, architecture students, landscape architects, historic preservationists, and other persons interested in architecture or the building trades.
Architect.org - Architectural Organizations - http://www.architect.org/links/architecture_organizations.html
Global livable cities think tank providing free architecture knowledge resources.
IIT – Architecture Organizations - http://www.iit.edu/arch/organizations/
Professional architecture organizations list from IIT in Chicago.
Academic Info – Architecture Organizations - http://www.academicinfo.net/archorg.html
An annotated directory of architecture organizations.
GreatBuildings - http://www.greatbuildings.com/
Presenting 1000 classics of world architecture, and hundreds of their great designers, in the leading general architecture reference site online.
UNESCO's World Heritage Center - http://whc.unesco.org/
Aims to encourage countries to sign the World Heritage Convention and to ensure the protection of their natural and cultural heritage.