Wikia

“Apps for Democracy produced more savings for the D.C. government than any other initiative.” − Vivek Kundra, former CTO of Washington, DC and current Federal CIO. ^[1]

Neighborland
CityGroups, searchable public directory that allows community organizers and residents to find community groups by location and topic. New open source Drupal product for cities, built by Code for America fellow Chach Sikes initially for Seattle and Boston.
We the People, petitions site on WhiteHouse.gov
Give a Minute!, currently (Nov 2010) for Chicago
Challenge.gov, a place where the public and government can solve problems together
Apps for democracy, Washington DC and beyond
Transparency and Open Government, The White House - Blog post
Open Govermnent Innovation Gallery
Center for Wise Democracy
Imagine Chicago Imagine projects and networks in the UK, Europe and Australia have been modelled on Imagine Chicago.