RSS: Podcasts Only: Users can subscribe to http://feeds.feedburner.com/PaulWheatonPermaculture for podcast updates only. Please note that if you subscribe to this feed, you will not receive updates that contain blog posts, youtube videos, and other content without podcasts. We recommend this feed only be used for podcast downloading software such as iTunes. We are currently in the process of adding a "full content" RSS feed.
EMAIL: Email subscriptions are here.
iTunes: Click here for the iTunes podcast page. Click on the "View in iTunes" button on the left side of that page to view the podcast in iTunes, where you can click subscribe. If that's not working for you, please search for "Paul Wheaton" in the iTunes store and you should find the Podcast page.
YouTube: You can subscribe to Paul's YouTube videos here: Paul Wheaton's Permaculture Videos on YouTube. Just click 'subscribe' at the top of the profile (and be sure to check the box for email updates of each new video).