The Public Radio Exchange (PRX) is a non-profit web-based platform for digital distribution, review, and licensing of radio programs. The organization is the largest on-demand catalogue of public radio programs available for broadcast and internet use. History The PRX site and its services launched in September 2003 after a two-year planning, research, and development phase supported by the Corporation for Public Broadcasting, the National Endowment for the Arts, and the Ford Foundation. PRX received additional support from the NTIA Technology Opportunities Program, the MacArthur Foundation, the Open Society Institute, the Surdna Foundation, and Google Grants. PRX offices are located in Cambridge, Massachusetts. On February 28, 2007, PRX and the Corporation for Public Broadcasting announced the Public Radio Talent Quest. It was an open search for new public radio talent, and gave producers the chance to produce a pilot show for public radio. Finalists were to be chosen after a five-round competition voted on by fans, public radio professionals and celebrity judges. On May 14, the first round of submissions ended with 1,452 entries. As of May 22, 2007, the Public Radio Talent Quest site had over 14,600 registered users. On April 9, 2008, The MacArthur Foundation selected PRX as one of its 2008 recipients of the MacArthur Award for Creative and Effective Institutions. In late November of that year, PRX soft-launched PRX 3.0. The launch included their Remix Radio project which provides a sampling of the content available for licensing on the site. On January 1, 2009, PRX, Inc became a Massachusetts 501c3 non-profit corporation. Previously PRX had been a project area of the Station Resource Group, a Maryland non-profit. On January 28, PRX Remix was added to XM Satellite Radio on channel 136. Later that year, on July 19, PRX launched the Public Radio Player 2.0, an iPhone app for public radio developed by PRX, NPR, and other public radio partners, and funded by the Corporation for Public Broadcasting. On August 11, PRX was included in CPB's agreement with SoundExchange through 2015 as a covered public radio entity for music webcasting royalties. In 2010 PRX launched two iPhone apps: the This American Life app on February 1 and the WBUR Boston app on July 7. That same year, PRX won a Peabody Award for The Moth Radio Hour. PRX was also announced as a winner of the 2010 Knight News Challenge for Story Exchange, a crowdfunding journalism project, on