Christian raio is a radio format that focuses on transmitting programming with a Christian message. Many such broadcasters play popular music of Christian influence, though many programs have talk or news programming covering associated topics that can have a political angle to them. Many Christian radio stations are commercial in nature, and select music in a manner intended to increase profitability of advertisers, thereby increasing the value of the station's advertising, and the station's profits. Other Christian radio stations are supported by listeners, or by Christian organizations/institutions, or both; these stations seek to evangelize their message instead of commercial gain.