America's Favorite Architecture (Flash)
The American Institute of Architects has thrown down a gauntlet of sorts by offering up this list of the top 150 architecture projects as selected by the American public. Through a partnership with Google Earth, visitors can locate each building on an interactive map.

Art & Architecture Thesaurus
AATO contains more than 125,000 terms covering “fine art, architecture, decorative arts, archival materials, and material culture” and is more than a thesaurus, including brief definitions (the searchable “notes” field) and an impressive, easily navigable hierarchical tree.

Avery Architectural & Art Library
Greene & Greene Architectural Records and Papers Collection, ca. 1896-ca. 1963

Commission for Architecture and the Built Environment
To improve citizen’s quality of life through good design.

Concrete Construction Online
The latest in construction methods, materials and equipment for concrete contractors and specifiers, including commercial, residential, and decorative concrete resources.

Elements of Architecture
Created by the St. Louis Public Library, this online exhibit draws on the George Fox Steedman Architectural Collection, which was donated to the Library in 1928. The Collection contains drawings and renderings from early Frank Lloyd Wright editions and Gustave Eiffel's book on his Tower.

Emporis
From Manchester to Dubai, the Emporis website is a real treat for architects, urbanists, geographers, and anyone with an interest in buildings.

The Getty Conservation Institute
Started in 1985, The Getty Conservation Institute (GCI) "works internationally to advance conservation practice in the visual arts." Their mission is quite broad, as it includes conservation projects that involve architecture, individual objects, and site examinations.

Masonry Magazine
A new magazine for architects, landscape architects, engineers, interior designers, builders and contractors. The official monthly publication of the Mason Contractors Association of America.

Modern Steel Construction
American Institute of Steel Construction: archives; reader resources; subscriptions; and more.

SkyscraperPage
Beautiful architectural drawings of thousands of tall buildings around the globe, contributed by members of the SkyscraperPage Illustrators Association, can be found on this site.

WorldviewCities.org
Perspectives on architecture and urbanism from around the globe.