I was born in 1979 in Copenhagen, Denmark. After I graduated from Copenhagen Business School in 2005, I moved to Chicago, USA.
I am also the creator the web-application framework Ruby on Rails. The infrastructure software that we use to build all our applications at 37signals.
You can email me on david [at] loudthinking [dot] com.
Note: I'm no longer doing any form of consulting. If you're looking to hire a Rails programmer, others have had good success on jobs.37signals.com. If you have a question about using Rails, please see the Rails mailing list.