For something like the dis, it would be a great notification medium. A short message with a link to a larger story. Some examples might be,
A Pete Rant in the blog (insert link here)
Disney releases new discounts (insert link here)
We are doing a live call in show call NOW!
Email show is up (insert link here)
Kevin is putting on his glasses
Ok, the last on might only be of interest to the podcast bingo people.
Once Corey comes back from maternity leave he could even automate some of it so new blog postings would generate an automatic tweet.