Open Architecture Network
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Open Architecture Network is a one-stop spot for anyone involved with innovative and sustainable buildings (think: architects, engineers, community leaders, nonprofit groups, government agencies and technology companies). Loaded with projects and concepts, the site is built so people can upload info, comment on and, in some cases, download building or project specs. Housed on two servers totaling six terabytes, the site doesn't limit file size -- a major coup for architects who typically work on megabyte-heavy CAD files.
The Beta Version of the site went live on March 8, 2007.