I took part in the “Collaborative Audio Promo” by commandline and I actually won a prize: ©ontent by Cory Doctorow! Thank you, Thomas! Here’s the proof it arrived at my home:

It took 14 days and cost $8.65 to send it from Rockville, MD, to Kassel, Germany, which is 6500 km (~ 4000 miles) air-line distance.

Listen to the promos:

Promo 1:
[audio:http://elektroelch.de/pics/tclp_promo_1.mp3|bg=0xCDDFF3|leftbg=0x357DCE|lefticon=0xF2F2F2|rightbg=0xF06A51|rightbghover=0xAF2910|
righticon=0xF2F2F2|righticonhover=0xFFFFFF|text=0x357DCE|slider=0x357DCE|track=0xFFFFFF|
border=0xFFFFFF|loader=0xAF2910]

Promo 2:
[audio:http://elektroelch.de/pics/tclp_promo_2.mp3|bg=0xCDDFF3|leftbg=0x357DCE|lefticon=0xF2F2F2|rightbg=0xF06A51|rightbghover=0xAF2910|
righticon=0xF2F2F2|righticonhover=0xFFFFFF|text=0x357DCE|slider=0x357DCE|track=0xFFFFFF|
border=0xFFFFFF|loader=0xAF2910]

Don’t forget to put them in your podcast! Fetch them from the promo page.