iTunes can help you publish your own podcast. You can easily publish your podcast on iTunes. Try now! Detailed steps
Steps 1: Download free Latest iTunes for Mac, and install it.
Steps 2: Run the iTunes software, you will see an interface like this:
Steps 3: Make sure it’s in one of these formats that iTunes supports: .m4a, .mp3, .mov, .mp4, .m4v, and .pdf. Meantime, Make sure your files are on a server with a publicly accessible URL, that you’ve created your RSS feeds properly, and put the URL of your RSS feed onto your server.
Steps 4: Click on Podcasts. there will be a button called “Submit a Podcast.” Click “Submit a Podcast” podcast RSS feed that you would like to consider adding into the iTunes Store.
Steps 5: Add tags. You will see a summary page. Depending on whether you have added tags already, a second screen might come up, asking you for more information–such as language, category, and whether the podcast requires explicit tags.
Steps 6: Next, the final steps involves getting the iTunes staff approval.