I have piled up my father's songs on his website as MP3s for listening. But now, some or all songs will be for sale. My suggestion is, he reworks each song to be a 20-30 sec. version preview, instead of the full versions he has now, then if the person likes it, there will be a URL that leads to the music store with the full version of the song; there at the store, the songs can be purchased and downloaded. I hear mixed comments on PayPal, iTunes, etc. Paypal micropayments is supposedly made for that purpose. Does anyone have experience with them, or any other recommendations?