An interactive tool for data cleaning and transformation. From the Stanford Visualization Group.
Google Refine is a power tool for working with messy data, cleaning it up, transforming it from one format into another, extending it with web services, and linking it to databases like Freebase.
Code for America helps city governments become more transparent, connected and efficient by connecting the talents of web developers with people who deliver city services and want to embrace the transformative power of the web to achieve more impact with less money. Inspired in part by Teach for America, CFA works with city officials and leading web development talent to identify and then develop web solutions that can then be shared and rolled out more broadly to cities across America.
Website aimed at facilitating an international effort to build open interoperable systems that allow citizens to more directly interact with their cities. Run by the Open Planning Project.
The MapTogether project provides free map-related training and tools for community and nonprofit groups around the world. Their resources include software, datasets, online mapping services, documentation, and training resources.
Blog by David McCandless which regularly features original data visualizations and associated source data.
A Windows desktop application for easy data visualization and publication on the web.
Catalog of public datasets generated by the City of Vancouver.
An accessible tutorial on the R programming language and software environment for statistical computing and graphics. By Norm Matloff.
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Development contest from the government of New South Wales in Australia rewarding developers that use government and public data sources related to NSW to create applications.
Catalog of public datasets generated by the Australian government.
Development contest from Australia's Government 2.0 Taskforce rewarding developers that use government data sources like those available on data.australia.gov.au to create applications.
Development contest from the City of New York rewarding developers that use any of the data sources available on NYC Data Mine to create applications. Judges include John Borthwick, Jason Calacanis, Fred Wilson, Esther Dyson and Kevin Ryan.
Clearinghouse for datasets published by the City and County of San Francisco.
Tool for mashing up datasets from the U.S. government to see how states compare on important issues.
Resources and code from Sunlight Labs, available for download.
Index to the publicly availably web services and XML data sources provided by the U.S. government.
Catalog of public datasets generated by the Executive Branch of the U.S. Federal Government.
Development contest from Sunlight Labs rewarding developers that use any of the data sources on Data.gov to create applications. Judges include Tim O'Reilly of O'Reilly Media and Chris DiBona, open source program manager at Google.
A live feed of official news from U.S. Government Twitter, YouTube, RSS, Facebook, Flickr accounts and more.
A GPL-licensed visualization tool that can help show relationships in data.
A list of small real-world data sets collected from the web.
Area to submit and vote on ideas for inclusion in U.S. President Obama's forthcoming Open Government Directive.
Hub for projects at the intersection of civics and technology, focusing on projects related to the U.S. Congress and state-level legislatures.
Website of the campaign to appoint Carl Malamud Public Printer of the United States, head of the Government Printing Office. Endorsed by Datamob.
CloudMade provides a variety of resources to help developers build location-based apps using data from OpenStreetMap, including geocoding services and a mapping API with wrappers for Ruby, Python, and Java.