From a station's PRX profile (which you can find by searching for the station's call letters or name), click "Contact [station call letters]" on the right.
Make it easy for a station to understand why you are contacting them about a piece. For example, if there's a music festival going on in their town, and you interviewed one of the bands in that festival, be sure to briefly explain the connection. And, send them a direct link to the piece on PRX!
Sorry, but we don't allow mass-messagings of all the PRX stations. With as many members and pieces we have, you can see how that might get out of hand. But, you can target and contact specific stations through PRX messaging.