Specs and ideas:
Work around Wikipedia:
I visited the OhmyNews citizen journalism forum in Seoul, South Korea in 2005 and provided Wikinews coverage from the event.
Presenting semantic wiki technologies, including WiktionaryZ, at Wikimania 2006. To the right are Brion Vibber (Wikimedia CTO) and Denny Vrandevic (Semantic MediaWiki developer).
When I proposed Wikimedia Commons, I developed a detailed Commons:Project plan, including a redesigned upload form. In the end, the project was launched with no special functionality. One month later, I coded the feature to use images from Commons.
One of about 6,000 images uploaded by FlickrLickr, a collaborative process I developed to vet freely licensed images from Flickr for inclusion in Wikimedia Commons.
Wikipedia's logo until September 2003. In mid-2003, I organized the international logo contest, which resulted in the current logos for Wikipedia, the Wikimedia Foundation, and MediaWiki.
The namespace manager is one of the most complex pieces of code I've worked on for MediaWiki. It is in the process of being merged into the standard distribution of the software.
One of 10,000 reproductions of paintings donated to us by Directmedia, a Berlin company (not all of them show chubby kids ;-). I coordinated the upload and metadata import.