Thistlepod, is a free podcast offered by National Public Radio in which their well-known music host Fiona Ritchie picks previews and debuts of new music from Celtic roots. The podcast's name is a reference to Ritchie's long-running Celtic music program, The Thistle & Shamrock. Thistlepod is updated twice-monthly and offers short clips from the latest releases from established and emerging artists in Europe and North America.