The brand new Google+ sign-in for apps and website is exciting. I think it's a big deal for podcasters. You can now share stuff from apps and websites to your Google+ stream along with a big button. One of these buttons is titled 'LISTEN'. Two audio platforms have linked with Google+ already - Shazam and TuneIn. If you've not added your podcast to the TuneIn directory now is the time to submit is and then share it on Google+ for the world to hear.

How To Share A Podcast On Google+: http://www.musicradiocreative.com/jingles/how-to-share-a-podcast-on-google/

Introducing Google+ Sign-In: http://googledevelopers.blogspot.co.uk/2013/02/introducing-google-sign-in-simple-and.html