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APM, based in St. Paul, Minn., produces national programs including A Prairie Home Companion and Marketplace. The company owns and operates the statewide Minnesota Public Radio network and Los Angeles news station KPCC.
MPR is a network of 42 stations throughout Minnesota, beginning in 1967 as a single classical music station in Collegeville, Minn. It is the largest employer of local journalists in public media. The network formed APM as its parent company after taking over KPCC from Pasadena City College in 2000.
APM’s founder and previous chief executive, Bill Kling, has advocated for stations severing their ties to universities has called for the largest metro stations to hire 100 reporters starting mid-2011, at a total cost of $100 to $150 million.
Public Insight Network is a crowdsourcing tool for journalists created by Minnesota Public Radio in 2003. Members of the public are invited to share their expertise about particular subjects and volunteer as sources.
The database is shared with more than 40 partner organizations, including NPR, NPR stations, daily newspapers, and ProPublica, with plans to expand to 50 more newsrooms by 2012. MPR alone has accumulated some 100,000 sources so far.
In 2011, it acquired the crowdsourcing project Spot.us.
Public Insight Network was tested on a large scale in 2007, when a bridge collapsed in Minneapolis. MPR received numerous firsthand accounts and photos from people at the scene, which stations could use to help report stories while details were still emerging.
APM also owns and operates WKCP, a classical music station in Miami.
Twitter is a social network and microblogging platform. The service is built on 140-character messages called tweets, which live on the web and can be read by anyone, although some users opt to make their accounts private. Twitter also allows users to “follow,” or subscribe to, other users’ tweets and — through replies to and…