Maplight is a nonpartisan research organization that reveals money’s influence on politics in the U.S. Congress and in the CA and WI Legislatures.  "We provide tools that connect data on campaign contributions, politicians, legislative votes, industries, companies and more to show patterns of influence never before possible to see. These tools allow users to gain unique insight into how campaign contributions affect policy so they can draw their own conclusions about how money influences our political system." www.maplight.org