Chats and Forums

Architecture Week Design Community
This architecture and design web portal provides forums for public communication on world architecture, sustainable design, 3D design and 3D computer graphics.
http://www.designcommunity.com/

i-Think
An online community for the property, architecture and construction sectors, dedicated to professional networking, stimulating debate on sustainability in the built environment and showcasing best practice.
http://www.i-think.com

Talkin' About Architecture
A Yahoo group to express opinions or ask questions about architecture and art. Registration required.
http://groups.yahoo.com/group/talkinaboutarchitecture/