Yes we are now supporting audio.
Check out this cool example of a Gary Vaynerchuk podcast I've attached to a zubbit call-to-action .
Initially we are supporting audios hosted on Soundcloud but if you let us know what other platforms you use then we will add more.
So all you need to do is record a great audio or take one of your existing audios or podcasts and upload it to SoundCloud and you are set.
All you do next is create a audio call-to-action in your zubbit back office and you then all set to add that to any link you share.