• An app launched last year called chirp.io: http://jngl.es/chirp
• It's like a social network for audio.
• It generates a tweeting noise that allows you to share a web URL, image or short text.
• You could embed audio into your podcast at the end to create a subscribe link.
• Just hold your phone up to the audio source with the app open to use it.
• I made a YouTube video about Chirp.io jingles here: http://youtu.be/hh5jayN8OPI

Mike Russell, Music Radio Creative
http://www.musicradiocreative.com