Cause Caller, the virtual phone bank, uses. From this wiki you can manage politician's contact information, and more importantly, create and manage the causes that Cause Caller offers activists.
This wiki is also meant to be a free and well maintained database of public official's content information available in the RDF format. This means that you can use the data in Cause Caller's database for your own projects by using the Special:ExportRDF page to export structured data that you can query using languages like SPARQL. It also means that this wiki is part of the Semantic Web.