Traffic measurement on the World Wide Web is far from an exact science, and much of the potential data remains behind proprietary walls. But with two million monthly visitors, the family of design and building web sites led by ArchitectureWeek is arguably one of or the biggest online. We'd like to share with you some of our thoughts on how it's put together and how your participation is supported, invited, and intrinsic.
In the past, various 3D formats (such VRML, 3DS, 3DMF, and o2c) have been touted as "the 3D PDF" (portable document format). But their opportunity to become the de facto standard may have passed. In January 2006, Adobe unveiled its own 3D format software, called Adobe Acrobat 3D, which actually uses the latest PDF file format. As with those other formats, a free viewer is available.