I lead Platform Engineering at Spoke Software (http://www.spoke.com)
Previously I was the CTO at http://www.publicmind.com, VP of Engineering at http://www.enviz.com and lead the engineering team at http://www.hpshopping.com
My email is mailto:mark@interwalk.com or mailto:mark@spoke.com
Larger Photo collection is now online including panorama, night, pinhole, and zone plate photography. http://www.flickr.com/photos/pinhole/sets/
Wiki stuff