To subscribe to a Podcast, just cut and paste the following address into your podcast aggregation software, such as iTunes or Juice:
Science Podcast:
http://www.sciencemag.org/rss/podcast.xml
Science Signaling Podcast:
http://stke.sciencemag.org/rss/podcast.xml
As new Podcasts are posted, your podcast software will download them and save them directly to your desktop computer or portable audio device.